Perhaps you should try some spelling variations:
thoai tinh » thai tinh, thoi tinh, thoai tieng
hoi thoai » hoi khoa, hoi tai, hoi thi
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, phan cau, thanh chau
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi thoai tinh - canh tranh ((cua dung) or (qua dung)) cong tan ((than cau) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi thoai tinh - canh tranh ((cua dung) OR (qua dung)) cong tan ((than cau) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoi thoai tinh - canh tranh ((cua dung) or (qua dung)) cong tan ((than cau) or (than cap))*.