Perhaps you should try some spelling variations:
cao thuc » cao thuoc, bao thuc, can thuc
thuc dan » thuc hanh, hoc dan, thuc vat
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
te sach » toc sach
y nang » ky nang, ly nang, may nang
va cao » va cac, va co, va dao
v nang » va nang, vu nang, van nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((y nang) OR (v nang)) xa hoi. lieu va cao thuc dan ((hanh vai) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (v nang)) xa hoi. lieu va cao thuc dan ((hanh vai) OR (hanh tai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) OR (v nang)) xa hoi. lieu va cao thuc dan ((hanh vai) or (hanh tai)) cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) OR (v nang)) xa hoi. lieu va cao thuc dan ((hanh vai) or (hanh tai)) cua te*.