Perhaps you should try some spelling variations:
thanh tue » thanh tu, thanh hue, thanh tuu
van thanh » ban thanh, van tuan
thu sach » tu sach, thuat sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
thu sac » thu san, thu xac, thu dac
hieu su » hieu sau, tieu su, hieu so
tue cua » te cua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
hieu vu » hieu va, hieu ve, dieu vu
tang ha » lang ha, tang ma, trung ha
ky tang » ky nang, ky dang, kho tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sac) OR (thu sach)) ky tang ha noi. ((hieu vu) or (hieu su)) chat xuc van thanh tue cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sac) OR (thu sach)) ky tang ha noi. ((hieu vu) OR (hieu su)) chat xuc van thanh tue cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sac) OR (thu sach)) ky tang ha noi. ((hieu vu) or (hieu su)) chat xuc van thanh tue cua tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sac) OR (thu sach)) ky tang ha noi. ((hieu vu) or (hieu su)) chat xuc van thanh tue cua tre*.