Perhaps you should try some spelling variations:
doanh luan » doanh nhan
thong cong » trong cong, tong cong, thong thong
lieu tinh » trieu tinh, diep tinh, bien tinh
cong lang » cong vang, cong luong, cong quang
lang than » lang thang, lang thanh, sang than
doi lieu » duoc lieu, doi chieu, du lieu
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi lieu tinh - chinh ((doanh cua) or (doanh luan)) thong cong lang than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - chinh ((doanh cua) OR (doanh luan)) thong cong lang than cao.
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - chinh ((doanh cua) or (doanh luan)) thong cong lang than cao*.