Perhaps you should try some spelling variations:
chau tinh » cuu tinh, ha tinh, cua tinh
tranh van » tran van, thanh van, tranh ban
trinh van » trinh han, trinh quan, trinh toan
nang cong » nang song, dang cong, bang cong
moc chau » toc cham, hoc chat
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: moc chau tinh - canh ((tranh van) or (trinh van)) nang cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: moc chau tinh - canh ((tranh van) OR (trinh van)) nang cong dan toan cao*.