Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, thi chieu
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
cong tang » cong thang, cong tan, cong lang
ho chieu » theo chieu, hoc thieu, thi chieu
cua tong » cua cong, cua dong, cua nong
tang van » dang van, hoang van, trong 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 (ho chieu))) or (doi chieu)) xanh - hanh tranh cua tong cong tang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((mot chieu) OR (ho chieu))) OR (doi chieu)) xanh - hanh tranh cua tong cong tang van ban.
• Adding a wildcard symbol may retrieve word variants: ((((mot chieu) or (ho chieu))) or (doi chieu)) xanh - hanh tranh cua tong cong tang van ban*.