Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh cua » doanh cua, manh cua
dang cong » dung cong
cong lang » cong vang, cong luong, cong quang
doi lieu » duoc lieu, doi chieu, du lieu
cua dang » cua cong, cua ban
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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 dang cong lang ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi lieu tinh - canh tranh cua dang cong lang ((toan cau) OR (toan cao))*".