Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
theo chu » theo chieu, cho chu, theo yeu
chao chu » cho chu, cua chu, cao cho
tranh va » tranh van, trang va, trinh va
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

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