Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
truong can » truong van, truong ca, trong can
truong cao » truong dai
hoc thieu » toc thieu, hoc hien
manh toan » thanh toan, anh tuan, tinh toan
ban cong » bang cong, van cong, phan cong
dan toan » van toan, dan than, xuan toan

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 - thanh ((truong can) or (truong cao)) ban cong ((dan toan) OR (manh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((truong can) OR (truong cao)) ban cong ((dan toan) OR (manh toan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh ((truong can) or (truong cao)) ban cong ((dan toan) OR (manh toan)) tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((truong can) or (truong cao)) ban cong ((dan toan) OR (manh toan)) tap*.