Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
hanh tran » hanh trang, thanh tran, hanh tram
van thong » van thuong, van phong, va thong
manh toan » thanh toan, anh tuan, tinh toan
tran van » luan van
van tai » von tai, van tuan

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 (thien anh)) - hanh tran van thong thong ((manh toan) or (van tai)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - hanh tran van thong thong ((manh toan) OR (van tai)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - hanh tran van thong thong ((manh toan) or (van tai)) cau*.