Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
co truong » cho truong, cao truong, con truong
doanh bac » doanh bat, doanh ban, danh bac
trinh co » trinh do, trinh cong, trinh hoa
cong tac » cong ty
nhan » phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu sang - hanh trinh co truong cong tac ((doanh bac) or (doanh nhan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu sang - hanh trinh co truong cong tac ((doanh bac) OR (doanh nhan)).
• Adding a wildcard symbol may retrieve word variants: toc thieu sang - hanh trinh co truong cong tac ((doanh bac) or (doanh nhan))*.