Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
cua truong » cua trung, xuan truong, xa truong
hoc thieu » toc thieu, hoc hien
cong san » cong tac
san hang » san chang, ban hang, van hang
hang cau » hang dau, hang ca, nhung cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - hanh trinh ((cua truong) or (cac truong)) cong san hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh trinh ((cua truong) OR (cac truong)) cong san hang cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh trinh ((cua truong) or (cac truong)) cong san hang cau*.