Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ly quang » le quang, vu quang
tu sach » thu sach, su sach, te sach
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
cac luc » cau luc, coc luc, cac nuoc
van cac » van hac, van cau, van bac
lua tre » cua tre, luy tre, dua tren
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((ly quang) or (ly hang)) x ho. hieu van cac luc va ((danh vi) or (danh di)) lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly quang) OR (ly hang)) x ho. hieu van cac luc va ((danh vi) OR (danh di)) lua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ly quang) or (ly hang)) x ho. hieu van cac luc va ((danh vi) or (danh di)) lua tre*.