Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan nhung » luan chung, luan hung, quan nhung
cong danh » cuong danh, cong thanh, cong khanh
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chi)) xanh - hanh trinh luan nhung ((cong danh) OR (cong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chi)) xanh - hanh trinh luan nhung ((cong danh) OR (cong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chi)) xanh - hanh trinh luan nhung ((cong danh) OR (cong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chi)) xanh - hanh trinh luan nhung ((cong danh) OR (cong dan)) toan cau*.