Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
quan nhung » qua nhung, cua nhung, luan chung
hoc thieu » toc thieu, hoc hien
theo chu » theo chieu, cho chu, chao chu
canh ban » canh dan, canh van, doanh ban
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban
can ban » van ban, toan 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 (theo chu)) tinh - ((canh ban) OR (can ban)) quan nhung cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) tinh - ((canh ban) OR (can ban)) quan nhung cong van tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo chu)) tinh - ((canh ban) OR (can ban)) quan nhung cong van tuan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) tinh - ((canh ban) OR (can ban)) quan nhung cong van tuan ban*.