Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
hang dau » hang va
hang tai » hang va, dung tai
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - canh tranh cua dung cong tan ((phan tu) or (((hang dau) OR (hang tai))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - canh tranh cua dung cong tan ((phan tu) OR (((hang dau) OR (hang tai))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - canh tranh cua dung cong tan ((phan tu) or (((hang dau) OR (hang tai))))*".