Perhaps you should try some spelling variations:
luan chung » luan chinh
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
luan hung » lan hung, luan ung, tuan hung
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
tac than » tac thanh, tam than, tac nhan
than cap » khan cap, thanh lap, thanh cac

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)) tinh - anh tang ((luan hung) or (luan chung)) cong tac than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) tinh - anh tang ((luan hung) OR (luan chung)) cong tac than cap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) tinh - anh tang ((luan hung) or (luan chung)) cong tac than cap*.