Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
va danh » va dinh, va dan, va hanh
ve cham » va cham, ve chat, vu cham
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ve cam » ve cac, va cam, ve cai
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ma hoi. hieu ((ve cam) OR (ve cham)) duc ((va danh) or (va thanh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu ((ve cam) OR (ve cham)) duc ((va danh) OR (va thanh)) dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang ma hoi. hieu ((ve cam) OR (ve cham)) duc ((va danh) or (va thanh)) dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu ((ve cam) OR (ve cham)) duc ((va danh) or (va thanh)) dai cua tre*.