Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
manh toan » thanh toan, anh tuan, tinh toan
van than » van thanh, van thang, van 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 xanh - hanh trinh cua ((hang cong) OR (bang cong)) ((manh toan) or (van than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh cua ((hang cong) OR (bang cong)) ((manh toan) OR (van than)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh cua ((hang cong) OR (bang cong)) ((manh toan) or (van than)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh cua ((hang cong) OR (bang cong)) ((manh toan) or (van than)) ban*.