Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doanh quan » doanh quang, doanh luan, doan quan
dung tuong » dung thuong, dung truong, dung trong
hoc chieu » hoc thieu, ho chieu, hoc hien
manh qua » manh quan, manh cua, hanh qua
danh qua » hanh qua, manh quan, thanh qua
lai toan » bai toan, lap toan, lai thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh ((manh qua) or (((danh qua) or (doanh quan)))) dung tuong lai toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh ((manh qua) OR (((danh qua) OR (doanh quan)))) dung tuong lai toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((manh qua) or (((danh qua) or (doanh quan)))) dung tuong lai toan cau*.