Perhaps you should try some spelling variations:
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
chau tinh » cuu tinh, ha tinh, cac tinh
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
cua tinh » cua sinh, va tinh, ha tinh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 ((chau tinh) or (cua tinh)) - ((hanh trung) OR (hanh trang)) quan dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chau tinh) OR (cua tinh)) - ((hanh trung) OR (hanh trang)) quan dung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chau tinh) or (cua tinh)) - ((hanh trung) OR (hanh trang)) quan dung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chau tinh) or (cua tinh)) - ((hanh trung) OR (hanh trang)) quan dung cong tan toan cau*.