Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung quan » truong quan, trong quan, trung tuan
quan trong » gian trong
mot chieu » doi chieu, ho chieu
hoc thieu » toc thieu, hoc hien
cong san » cong tac
chan cap » khan cap, cao cap, phan cac
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: ((mot chieu) or (hoc thieu)) xanh - thanh trung quan trong cong san ((chan cap) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (hoc thieu)) xanh - thanh trung quan trong cong san ((chan cap) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (hoc thieu)) xanh - thanh trung quan trong cong san ((chan cap) or (than cap))*.