Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
chuong van » chuong han, duong van, thong van
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua trung » cua truong, xuan trung, cua nhung
doc hieu » toc thieu, hoc thieu, hoc hien
dung cua » dung luan, dung cho
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu manh - thanh dung cua trung ((chuong van) or (phung van)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - thanh dung cua trung ((chuong van) OR (phung van)) toan ban.
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - thanh dung cua trung ((chuong van) or (phung van)) toan ban*.