Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
tu sach » thu sach, su sach, te sach
vu cham » va cham, vu kham, tu cham
tai cuu » tai cuc, tai buu, tai cua
han tai » hang tai, nhan tai, van tai
dan han » dan chan, dan than, dan hanh
ve cham » va cham, ve chat, ve chim
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
mang xa » mang may, dang xay, mang cua
cuu tre » cua tre, cau tren, cau treo

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 ((mang xa) or (lang xa)) hoi. hieu ((ve cham) or (vu cham)) thuc dan han tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((mang xa) OR (lang xa)) hoi. hieu ((ve cham) OR (vu cham)) thuc dan han tai cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((mang xa) or (lang xa)) hoi. hieu ((ve cham) or (vu cham)) thuc dan han tai cuu tre*.