Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
tranh van » tran van, trinh van, thanh van
pham tai » pham thi, pham van
pham va » pham van, pham ma, phan van

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

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