Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhanh lang » nhanh quang, nhanh thang, nhan dang
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
cong doan » cong dan, cong hoan, dong doanh
ho chieu » hoc thieu, doi chieu, mot chieu
doan van » doan va, hoang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) xanh - ((nhanh lang) or (hanh trang)) cua nhung cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) xanh - ((nhanh lang) OR (hanh trang)) cua nhung cong doan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) xanh - ((nhanh lang) or (hanh trang)) cua nhung cong doan van ban".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) xanh - ((nhanh lang) or (hanh trang)) cua nhung cong doan van ban*.