Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
truong van » trong van, truong va, truong dai
hieu lang » chieu sang, hieu quang, nhieu tang
trinh cua » tinh cua, trinh luat, trinh quan
thong van » trong van, thong va, thong quan
ho hieu » ho chieu, hoi hieu, nho hieu
tai cao » thai cao, tao cao, tai sao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh trinh cua cong ((truong van) or (thong van)) tai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh trinh cua cong ((truong van) OR (thong van)) tai cao.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh trinh cua cong ((truong van) or (thong van)) tai cao*.