Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh han » trinh quan
hang cong » dang cong, hang nong, bang cong
han hang » hang hang, han chang, ban hang
dan toan » dan than, manh toan, xuan toan
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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 han hang cong ((((dan toan) OR (van toan))) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh trinh han hang cong ((((dan toan) OR (van toan))) OR (van tuan)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - hanh trinh han hang cong ((((dan toan) OR (van toan))) or (van tuan)) cau*".