Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
dung cong » dung trong
tuong va » truong va, thuong va, luong va
cong dan » cong san, cong tan, huong dan
doi chi » doi khi
tung va » trung va, dung va, vung va
dan tai » van tai, dan thi, han tai
tai cao » thai cao, tao cao, tai sao

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 (doi chi)) xanh - thanh ((tung va) OR (tuong va)) dung cong dan tai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (doi chi)) xanh - thanh ((tung va) OR (tuong va)) dung cong dan tai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (doi chi)) xanh - thanh ((tung va) OR (tuong va)) dung cong dan tai cao".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (doi chi)) xanh - thanh ((tung va) OR (tuong va)) dung cong dan tai cao*.