Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
xach tay » canh tay
hang tai » hang va, dung tai
hanh vai » hanh vi, hanh va, hanh tai
lang van » dang van, tang van, hoang van
thuc va » thuc vat, thuc dan, thuc day
vu tham » va tham, vu kham, vu cham
hieu vu » hieu va, hieu ve, hieu su
van hoi » van hoa, van hoc, van hoe
sach tu » sach thu, cach tu, sach ty
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((xach tay) or (sach tu)) lang van hoi. hieu vu tham thuc va ((hanh vai) or (hang tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((xach tay) OR (sach tu)) lang van hoi. hieu vu tham thuc va ((hanh vai) OR (hang tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((xach tay) or (sach tu)) lang van hoi. hieu vu tham thuc va ((hanh vai) or (hang tai)) cua tre*.