Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
hieu van » hieu va, thien van, lieu va
thai cua » than cua, tai cuc, tri cua
ly quang » le quang, vu quang
tu sach » thu sach, su sach, te sach
van cam » van nam, van lam, van cau
ly vang » ly hang, ly van
cua te » cua tu

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 vang) OR (ly quang)) xa hoi. hieu van cam ((duc va) or (tuc xa)) hanh thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ly vang) OR (ly quang)) xa hoi. hieu van cam ((duc va) OR (tuc xa)) hanh thai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ly vang) OR (ly quang)) xa hoi. hieu van cam ((duc va) or (tuc xa)) hanh thai cua te*".