Perhaps you should try some spelling variations:
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong danh » cuong danh, cong dan, cong thanh
yen tinh » tuyen tinh
cong tan » cong tac, cong san, cong thanh
toan cau » 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: doc ((lieu tinh) or (yen tinh)) - canh tranh cua nhung ((cong danh) or (cong tan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((lieu tinh) OR (yen tinh)) - canh tranh cua nhung ((cong danh) OR (cong tan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: doc ((lieu tinh) or (yen tinh)) - canh tranh cua nhung ((cong danh) or (cong tan)) toan cau*.