Perhaps you should try some spelling variations:
hanh vai » hanh va, hanh tai, hanh van
tru nang » tra nang, tri nang, truc nano
te sach » toc sach
thuc va » thuc vat, thuc dan, thuc day
co thuc » do thuc, co thua, mo thuc
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
tu nang » tu nong, tu nano, tu lang
x hoi » xa hoi, o hoi, x ho
va co » vo co

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 ((tu nang) OR (tru nang)) x hoi. hieu va co thuc va ((hanh vai) or (hanh vi)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (tru nang)) x hoi. hieu va co thuc va ((hanh vai) OR (hanh vi)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nang) OR (tru nang)) x hoi. hieu va co thuc va ((hanh vai) or (hanh vi)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((tu nang) OR (tru nang)) x hoi. hieu va co thuc va ((hanh vai) or (hanh vi)) cuu tre*.