Perhaps you should try some spelling variations:
trung cong » truong cong, trong cong, trung uong
hoc thieu » toc thieu, hoc hien
thanh dan » thanh san, thanh van, thanh dat
cua trung » cua truong, xuan trung, cua nhung
ho chieu » theo chieu, doi chieu, mot chieu
canh van » anh van, can van, cach van
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

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