Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
thi van » thi lan, thi hanh, thi nang
van cam » van nam, van lam, van cau
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
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: su sach y nang ma hoi. thi van cam ((duc va) OR (thuc vat)) hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoi. thi van cam ((duc va) OR (thuc vat)) hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. thi van cam ((duc va) OR (thuc vat)) hanh vai cua tre*.