Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, nhung don
hieu manh » hieu nganh, dieu hanh, hien hanh
hang cong » dang cong, hang nong, bang cong
vang toan » van toan, dang toan, quang toan
tranh va » tranh van, trang va, trinh va
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: ho ((hieu manh) or (chieu xanh)) - canh tranh va ((nhung cong) OR (hang cong)) vang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu xanh)) - canh tranh va ((nhung cong) OR (hang cong)) vang toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu manh) or (chieu xanh)) - canh tranh va ((nhung cong) OR (hang cong)) vang toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu xanh)) - canh tranh va ((nhung cong) OR (hang cong)) vang toan cao*.