Collocations for obtain - verb

fraudulently, illegally, unlawfully (BrE,law)
legally
recently

be able to, be unable to
attempt to, endeavour/endeavor to (esp. BrE)
fail to
assist sb to, enable sb to
be easy to, be possible to
be difficult to, be impossible to
goods which are difficult to obtain

be necessary to, need to
It is necessary to obtain the patients' consent.

by
The company claims to have obtained its database of names by legitimate means.

from
Anglers are required to obtain prior authorization from the park keeper.

be easily obtained, be readily obtained
Such information is easily obtained from the Internet.

sth can be obtained, sth may be obtained
Details of this offer can be obtained from any of our stores.

a means of obtaining sth, a method of obtaining sth, a way of obtaining sth

Obtain is used with these nouns as the subject:
finance, plaintiff

Obtain is used with these nouns as the object:
abortion, acquittal, advice, appointment, approval, assent, assistance, assurance, authorization, benefit, citizenship, clearance, compensation, concession, condom, confession, confirmation, consent, conviction, copy, coverage, credit, damage, data, degree, diploma, discount, divorce, doctorate, document, driving licence, education, employment, equation, estimate, evidence, exemption, favour, feedback, first, flow, freedom, fund, funding, grant, help, image, information, injunction, insight, insurance, judgement, justice, lease, leave, leverage, licence, loan, majority, mandate, measure, measurement, memo, mercy, name, nationality, oil, order, pardon, pass, passport, patent, permission, permit, picture, position, possession, proof, qualification, quotation, quote, rating, reading, receipt, recognition, recording, refund, registration, relief, report, representation, result, reward, right, sample, scan, scholarship, score, sex, signature, specimen, sponsorship, supply, ticket, understanding, undertaking, verification, visa, vote, warrant, writ