Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

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