Perhaps you should try some spelling variations:
vien nganh » vien thanh
nhung cong » dung cong, thong cong, hang cong
hanh dung » thanh dung, anh dung, hanh dong
tong cong » trong cong, cong cong, dung cong
doc vien » hoc vien, doc viet, doc tieng
dung cua » dung luan, dung cho
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc vien nganh - hanh dung cua ((nhung cong) or (tong cong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc vien nganh - hanh dung cua ((nhung cong) OR (tong cong)) dan than cau.
• Adding a wildcard symbol may retrieve word variants: doc vien nganh - hanh dung cua ((nhung cong) or (tong cong)) dan than cau*.