Perhaps you should try some spelling variations:
cua tinh » va tinh, ha tinh, hoa tinh
cua sinh » hoa sinh, va sinh
hanh san » thanh san, khach san, thanh son
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
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: theo ((cua tinh) OR (cua sinh)) - hanh san ((cua dung) or (cua dang)) cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((cua tinh) OR (cua sinh)) - hanh san ((cua dung) OR (cua dang)) cong tan toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((cua tinh) OR (cua sinh)) - hanh san ((cua dung) or (cua dang)) cong tan toan cau*".