Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh ly » thanh lay, thanh ky, thanh le
cam luoc » tom luoc, cam lo, dai luoc
hieu van » hieu va, thien van, lieu va
te sach » toc sach
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, v nang, may nang
ly cua » le cua

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