Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
nang quan » ban quan, nang suat
quan hung » quang hung, quan nhung, luan hung
hung cong » nhung cong, hung cuong, phung cong
van nang » van quang, van ban, van dong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (hoc thieu)) xanh - van nang quan hung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) xanh - van nang quan hung cong tan toan ban*.