Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
duc manh » suc manh, duc anh, duc minh
tu sach » thu sach, su sach, te sach
vai cua » dai cua, hai cua, lai cua
luc van » luoc van, luu van, duc van
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai

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 ty lang xa hoi. hieu ((ve cam) or (va cam)) ((luc van) or (duc manh)) hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty lang xa hoi. hieu ((ve cam) OR (va cam)) ((luc van) OR (duc manh)) hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty lang xa hoi. hieu ((ve cam) or (va cam)) ((luc van) or (duc manh)) hanh vai cua tre*.