Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh quan » tinh quang, trinh luat, trinh han
luong cong » dung cong, trong cong, cong cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
long cong » cong cong, tong cong, long tong
tin toan » tinh toan, nin toan, trinh toan
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: chao ((hieu manh) or (chieu tinh)) - hanh trinh quan ((long cong) OR (luong cong)) tin toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((hieu manh) OR (chieu tinh)) - hanh trinh quan ((long cong) OR (luong cong)) tin toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((hieu manh) or (chieu tinh)) - hanh trinh quan ((long cong) OR (luong cong)) tin toan cau".
• Adding a wildcard symbol may retrieve word variants: chao ((hieu manh) or (chieu tinh)) - hanh trinh quan ((long cong) OR (luong cong)) tin toan cau*.