Perhaps you should try some spelling variations:
nang tai » hang tai, tang tai, sang tai
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
tai roi » lai roi, tai hoi, tai loi
cua tre » cuu tre, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
luc va » duc va, tuc va, loc va
cua te » cua tu
va cam » va cham, va cac, va cao
y nang » ky nang, ly nang, v nang
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: su sach y nang tai roi. hieu ((ve cam) OR (va cam)) luc va hanh dai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang tai roi. hieu ((ve cam) OR (va cam)) luc va hanh dai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang tai roi. hieu ((ve cam) OR (va cam)) luc va hanh dai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sach y nang tai roi. hieu ((ve cam) OR (va cam)) luc va hanh dai ((cua tre) or (cua te))*.