Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
cua nhung » va nhung
cong vang » cong lang, cong quang, cong ngang
theo chu » theo chieu, cho chu, chao chu
canh ban » can ban, canh dan, canh van
cong van » cong san, song van, cong tan
tuan ban » tuan bang, toan ban, luan ban
ban cua » ban quan

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 cua nhung ((cong van) OR (cong vang)) tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) tinh - canh ban cua nhung ((cong van) OR (cong vang)) tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo chu)) tinh - canh ban cua nhung ((cong van) OR (cong vang)) tuan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) tinh - canh ban cua nhung ((cong van) OR (cong vang)) tuan ban*.