Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
ve chat » va chat, van chat
cua tre » cua te, cuu tre, cua triet
ve cai » va cai, ve cac, ve tai
va anh » van anh, va danh, va hanh
anh va » hanh va
va cua » va chua, via cua, ca 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 ty nang cau hoi. hieu ((ve cai) or (ve chat)) ly va anh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang cau hoi. hieu ((ve cai) OR (ve chat)) ly va anh va cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang cau hoi. hieu ((ve cai) or (ve chat)) ly va anh va cua tre*.