Perhaps you should try some spelling variations:
luan chung » luan chinh
luan hung » lan hung, luan ung, tuan hung
doc hieu » toc thieu, hoc thieu
anh dung » anh dong, anh huong, sach dung
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan cap » khan cap, than cap, nhan cach

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) or (hoc hien)) tinh - anh dung ((luan hung) or (luan chung)) cong tac nhan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc hien)) tinh - anh dung ((luan hung) OR (luan chung)) cong tac nhan cap.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc hien)) tinh - anh dung ((luan hung) or (luan chung)) cong tac nhan cap*.