Perhaps you should try some spelling variations:
truong cua » truong ca, truong quan, truong cao
hoc thieu » toc thieu, hoc hien
trung cua » trung tuan, trung cap, dung cua
dung cong » dung trong
ho chieu » theo chieu, doi chieu, mot chieu
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran cao » toan cao, tran chau, trang cho

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