Perhaps you should try some spelling variations:
ngung cong » nhung cong, dung cong, nganh cong
hieu sang » chieu sang, hieu lang, hieu quang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
nhan cach » phan cac
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan

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 sang - hanh tinh (chat or phat) ngung cong tac nhan cach~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - hanh tinh (chat OR phat) ngung cong tac nhan cach.
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - hanh tinh (chat or phat) ngung cong tac nhan cach*.