Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dan choi » dan hoi, dam choi, dan cho
choi tu » hoi tu, cho tu, chon tu

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 (hoc thieu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) dan choi tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc thieu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) dan choi tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (hoc thieu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) dan choi tu".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) xanh - canh tranh cua ((nhung cong) OR (thong cong)) dan choi tu*.