Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
xu quang » vu quang, xa quang, x quang
tu sach » thu sach, su sach, te sach
vai cua » dai cua, hai cua, lai cua
luc van » luoc van, luu van, duc van
xuc ban » duc ban, cuc ban, quoc ban
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
tu lang » cu lang, tu lanh, xu lang
cua tre » cua te, cuu tre, cua triet

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 ((tu lang) or (xu quang)) xa hoi. hieu vu cham ((xuc ban) or (luc van)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tu lang) OR (xu quang)) xa hoi. hieu vu cham ((xuc ban) OR (luc van)) hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((tu lang) or (xu quang)) xa hoi. hieu vu cham ((xuc ban) or (luc van)) hanh vai cua tre*.