Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thong cua » thong quan, thong tu, huong cua
mang cua » manh cua, dung cua, ban cua
cong tan » cong tac, cong san, cong thanh
chu van » cuu van, chu han
tan van » tran van, tang van, luan van
chuc » thuc, chua, phuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu van) or (chuc nang)) - hanh ((thong cua) or (mang cua)) thong cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu van) OR (chuc nang)) - hanh ((thong cua) OR (mang cua)) thong cong tan van ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chu van) or (chuc nang)) - hanh ((thong cua) or (mang cua)) thong cong tan van ban*.