Perhaps you should try some spelling variations:
nhung cong » dung cong, nhung don, nhung lang
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
tam than » ban than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - canh tranh cua ((((nhung cong) OR (thong cong))) or (hang cong)) tam than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh tranh cua ((((nhung cong) OR (thong cong))) OR (hang cong)) tam than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - canh tranh cua ((((nhung cong) OR (thong cong))) or (hang cong)) tam than cau*".