Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh manh » hanh mang, lanh manh, hoang manh
cua nhung » va nhung
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh manh ((cua nhung) OR (cua cong)) cong dan ((than cau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - hanh manh ((cua nhung) or (cua cong)) cong dan ((than cau) OR (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh manh ((cua nhung) or (cua cong)) cong dan ((than cau) OR (toan cau))*.