Perhaps you should try some spelling variations:
canh doanh » hanh doanh, chinh doanh, doanh doanh
kieu tinh » lieu tinh, trieu tinh, diep tinh
doanh cua » doanh luan
khoan cam » khoa cam, khoan va, phan cam
doc kieu » doc hieu, cac kieu, doc viet
ban nong » ban cong, ban nang, ban tong
nong tac » cong tac, dong tac, nong tan
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc kieu tinh - canh doanh cua ban nong tac ((ban cua) or (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc kieu tinh - canh doanh cua ban nong tac ((ban cua) OR (khoan cam)).
• Adding a wildcard symbol may retrieve word variants: doc kieu tinh - canh doanh cua ban nong tac ((ban cua) or (khoan cam))*.