Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
nang cau » nang cao, hang cau, nang dau
sach hay » sach han, sach ha, sach nay
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, ve cai
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 hay) or (sach y)) nang cau hoi. hieu ((ve cam) OR (va cam)) xuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach hay) OR (sach y)) nang cau hoi. hieu ((ve cam) OR (va cam)) xuc va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hay) or (sach y)) nang cau hoi. hieu ((ve cam) OR (va cam)) xuc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hay) or (sach y)) nang cau hoi. hieu ((ve cam) OR (va cam)) xuc va hanh vai cua te*.