Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
truong cao » truong dai
thong cong » trong cong, tong cong, phong chong
tac tran » tan tran, tac trai, tac tren
tran huu » tran duc

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) OR (chieu xanh)) - hanh truong cao ((thong cong) or (thong thong)) tac tran huu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu xanh)) - hanh truong cao ((thong cong) OR (thong thong)) tac tran huu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - hanh truong cao ((thong cong) or (thong thong)) tac tran huu".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - hanh truong cao ((thong cong) or (thong thong)) tac tran huu*.