Perhaps you should try some spelling variations:
luoc van » luoc can, luoc va, luc van
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
xu lang » cu lang, xu dang, xu quang
tu lang » cu lang, tu lanh, tu quang
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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