Perhaps you should try some spelling variations:
trinh thiet » trinh viet, trinh thi
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
hung cuong » hung vuong, hong cuong, hung luong
hoc thieu » toc thieu, hoc hien
hung cong » nhung cong, phung cong, dung cong
manh toan » thanh toan, anh tuan, tinh toan
dan toan » van toan, dan than, xuan toan

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 - hanh trinh thiet ((hung cong) or (hung cuong)) ((dan toan) OR (manh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh thiet ((hung cong) OR (hung cuong)) ((dan toan) OR (manh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh thiet ((hung cong) or (hung cuong)) ((dan toan) OR (manh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh thiet ((hung cong) or (hung cuong)) ((dan toan) OR (manh toan)) cao*.