Perhaps you should try some spelling variations:
hanh tran » hanh trang, thanh tran, hanh tram
lang cong » dang cong, bang cong, hang cong
theo chu » theo chieu, cho chu, chao chu
chu tinh » chau tinh, chua tinh, cuu tinh
tran van » luan van
van lang » van nang, va lang, van hang
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap
ca cau » cua cau, cac cau, can cau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu tinh - hanh tran van lang cong tan ((toan cao) or (ca cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu tinh - hanh tran van lang cong tan ((toan cao) OR (ca cau))*.