Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
tru nang » tra nang, tri nang, truc nano
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
xa hanh » xa thanh, xa khanh, va hanh
cao tuc » dao tuc, cao duc, cao suc
hieu va » lieu va
tu nang » tu nong, tu nano, tu lang
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: te sach ((tu nang) or (tru nang)) xa hoi. ((hieu va) OR (hieu qua)) cao tuc xa hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (tru nang)) xa hoi. ((hieu va) OR (hieu qua)) cao tuc xa hanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nang) or (tru nang)) xa hoi. ((hieu va) OR (hieu qua)) cao tuc xa hanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((tu nang) or (tru nang)) xa hoi. ((hieu va) OR (hieu qua)) cao tuc xa hanh vai cua tre*.