Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
cua truong » cua trung, xuan truong, cac truong
mot chieu » doi chieu, ho chieu
hoc thieu » toc thieu, hoc hien
canh dan » canh van, sanh dan, thanh dan
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban
can van » cac van, can ban, tan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (hoc thieu)) xanh - ((canh dan) or (can van)) cua truong cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (hoc thieu)) xanh - ((canh dan) OR (can van)) cua truong cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (hoc thieu)) xanh - ((canh dan) or (can van)) cua truong cong san toan tap*.