Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhung cong » thong cong, hang cong, nhung don
cang thang » cong thanh, dang thanh
doi chieu » doc hieu, ho chieu, mot chieu
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
thang cau » hang cau, thong cau, thanh chau
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: ((doi chieu) or (doi chi)) xanh - hanh trinh cua ((nhung cong) OR (dung cong)) cang thang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) xanh - hanh trinh cua ((nhung cong) OR (dung cong)) cang thang cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (doi chi)) xanh - hanh trinh cua ((nhung cong) OR (dung cong)) cang thang cau".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) xanh - hanh trinh cua ((nhung cong) OR (dung cong)) cang thang cau*.