Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hang cua » hang ca, huong cua, thong cua
mang cua » manh cua, dung cua, ban cua
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than ban » thanh ban, toan ban, than man
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: ((hoc thieu) or (doi chi)) sach - hanh ((hang cua) or (mang cua)) trong cong van than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chi)) sach - hanh ((hang cua) OR (mang cua)) trong cong van than ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chi)) sach - hanh ((hang cua) or (mang cua)) trong cong van than ban*.