Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
toc cach » hoc cach, truoc cach, cuoc cach
thanh di » thanh doi, thanh de, thanh do
toc sach » hoc sach, doc sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
cac xuc » cam xuc, cac nuoc, cac cuoc
nang co » nang cao, nang doc, nang noi
tu nang » tru nang, tu nong, tu nano
cua cau » cua cac, cua chu, cua cay
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc cach) OR (toc sach)) tu nang co hoc. hieu van ((cac xuc) or (chat xuc)) van thanh di cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc cach) OR (toc sach)) tu nang co hoc. hieu van ((cac xuc) OR (chat xuc)) van thanh di cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc cach) OR (toc sach)) tu nang co hoc. hieu van ((cac xuc) or (chat xuc)) van thanh di cua cau*".