Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
hanh tai » thanh tai, hang tai, han tai
te thai » te tai, te thi, te than
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
thai ky » thoi ky, than ky, thai ly
thuc va » thuc vat, thuc day
va cham » va chat, va tham
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te thai ky lang xa hoi. hieu va cham ((thuc va) or (thuc dan)) hanh tai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te thai ky lang xa hoi. hieu va cham ((thuc va) OR (thuc dan)) hanh tai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te thai ky lang xa hoi. hieu va cham ((thuc va) or (thuc dan)) hanh tai ((cua tre) or (cuu tre))*.