Perhaps you should try some spelling variations:
thong tuong » thong thuong, thong thong, thong duong
thien thanh » tien thanh, thi thanh, hien hanh
chat thong » chat chong, chat phong, chat trong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dan than » dan chan, ban than, van than
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (thien thanh)) - hanh tinh chat thong tuong ((dan than) or (van toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (thien thanh)) - hanh tinh chat thong tuong ((dan than) OR (van toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (thien thanh)) - hanh tinh chat thong tuong ((dan than) or (van toan)) cau*.