Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
nhung cong » dung cong, hang cong, nhung don
vang doanh » van doanh, hang doanh, dung doanh
tranh cua » doanh cua, manh cua
doanh cao » doanh co, doanh bao, doanh cho
theo chu » theo chieu, cho chu, chao chu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (theo chu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) vang doanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (theo chu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) vang doanh cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (theo chu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) vang doanh cao".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (theo chu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) vang doanh cao*.