Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
doi lieu » duoc lieu, doi chieu, du lieu
cong van » cong vang, song van, cong tan
cong san » cong tac
chat tu » nhat tu, chai tu, chay tu

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 - canh tranh cua thong ((cong van) OR (cong san)) chat tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi lieu tinh - canh tranh cua thong ((cong van) OR (cong san)) chat tu".
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - canh tranh cua thong ((cong van) OR (cong san)) chat tu*.