Perhaps you should try some spelling variations:
thanh trung » thanh tung
cong khanh » cong thanh, cong khan, cong nhan
cong hach » cong sach, cong thanh, trong hach
vu khach » vu khanh, vu khac, vay khach
trung ap » trung cap, trung lap, trung tam
toan ban » van ban
theo vu » theo tu, theo chu, theo yeu
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo vu khach - thanh trung ap dung ((cong hach) OR (cong khanh)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo vu khach - thanh trung ap dung ((cong hach) OR (cong khanh)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo vu khach - thanh trung ap dung ((cong hach) OR (cong khanh)) toan ban*.