Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
hanh trinh » hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
cua khong » hua khong, cua phuong, cua thuong
doi lieu » duoc lieu, doi chieu, du lieu
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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) or (hanh trinh)) cua khong cong dan ((toan cau) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi lieu tinh - ((canh tranh) OR (hanh trinh)) cua khong cong dan ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi lieu tinh - ((canh tranh) or (hanh trinh)) cua khong cong dan ((toan cau) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - ((canh tranh) or (hanh trinh)) cua khong cong dan ((toan cau) OR (toan tap))*.