Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
tru nang » tra nang, tri nang, truc nano
hieu van » thien van, lieu va, hieu ve
nam xuc » cam xuc, nam xua, nam thuc
van cuu » van cau, van chu, van cu
xuc van » duc van, luc van, vuc van
cuu tre » cua tre, cau tren, cau treo
hieu va » lieu va, hieu qua
tu nang » tu nong, tu nano, tu lang

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

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