Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, nhanh lang
cua thong » cua thuong, cua khong, cua tong
thuat cao » thuat co, thuat bao, thuat cam
mang cua » manh cua, dung cua, ban cua
cong tac » cong ty
toan cao » toan ban, toan tap
ho hieu » ho chieu, hoi hieu, nho hieu

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 mang cua thong cong tac ((thuat cao) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh mang cua thong cong tac ((thuat cao) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh mang cua thong cong tac ((thuat cao) or (toan cao))*.