Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
cong san » cong tac
san tai » sang tai, van tai, han tai
tai cao » thai cao, tao cao, tai sao

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 (theo chu)) xanh - ((hanh trinh) OR (canh tranh)) chua dong cong san tai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) xanh - ((hanh trinh) OR (canh tranh)) chua dong cong san tai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) xanh - ((hanh trinh) OR (canh tranh)) chua dong cong san tai cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) xanh - ((hanh trinh) OR (canh tranh)) chua dong cong san tai cao*.