Perhaps you should try some spelling variations:
thuc day » thuc dan
hanh vai » hanh vi, hanh va, hanh tai
so cach » so sach, co cach, loi cach
cach tu » cach thuc
tu nang » tru nang, tu nong, tu nano
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
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: so cach tu nang ma hoi. hieu ve nham ((thuc day) OR (thuc vat)) hanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so cach tu nang ma hoi. hieu ve nham ((thuc day) OR (thuc vat)) hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: so cach tu nang ma hoi. hieu ve nham ((thuc day) OR (thuc vat)) hanh vai cua tre*.