Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh va » thanh van, hanh va, thanh ha
tru nang » tra nang, tri nang, truc nano
van cam » van lam, van cau, van dam
xuc van » duc van, luc van, xuc ban
tu sach » thu sach, su sach, te sach
tu nang » tu nong, tu nano, tu lang
cuu tre » cua tre, cau tren, cau treo
va cuu » va cau, va chu, va huu

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