Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
doanh cua » doanh luan
dung cong » dung trong
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan tap » nhan tai, nhan tao, han tap
co lieu » cot lieu, co hieu, so lieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: co lieu tinh - hanh ((doanh cua) or (dung luan)) dung cong tac nhan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co lieu tinh - hanh ((doanh cua) OR (dung luan)) dung cong tac nhan tap.
• Adding a wildcard symbol may retrieve word variants: co lieu tinh - hanh ((doanh cua) or (dung luan)) dung cong tac nhan tap*.