Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thanh trung » thanh tung
doi chieu » doc hieu, ho chieu, mot chieu
nang cong » nang song, dang cong, bang cong
dao nang » cao nang, da nang, dai nang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban
doi chi » doi khi

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 (doi chi)) tinh - ((thanh trung) or (thanh thuong)) dao nang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) tinh - ((thanh trung) OR (thanh thuong)) dao nang cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) tinh - ((thanh trung) or (thanh thuong)) dao nang cong tac toan ban*.