Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
cong thanh » dong thanh, cong trinh, cong tan
lieu tinh » trieu tinh, diep tinh, bien tinh
cua nhung » va nhung
cong manh » cong danh, duong manh, hoang manh
toan cau » toan cao, toan ban, toan tap
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 - ((hanh trinh) or (canh tranh)) cua nhung ((cong manh) OR (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - ((hanh trinh) OR (canh tranh)) cua nhung ((cong manh) OR (cong thanh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - ((hanh trinh) or (canh tranh)) cua nhung ((cong manh) OR (cong thanh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - ((hanh trinh) or (canh tranh)) cua nhung ((cong manh) OR (cong thanh)) toan cau*.