Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, mot chieu, thi chieu
ho chieu » theo chieu, hoc thieu, mot chieu
tranh va » tranh van, trang va, trinh va
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((doi chieu) or (ho chieu))) or (doi chi)) xanh - hanh tranh va nhung cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((doi chieu) OR (ho chieu))) OR (doi chi)) xanh - hanh tranh va nhung cong van tuan ban.
• Adding a wildcard symbol may retrieve word variants: ((((doi chieu) or (ho chieu))) or (doi chi)) xanh - hanh tranh va nhung cong van tuan ban*.