Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dang xay » dang van, van xay
cham xuc » chat xuc, cham soc, pham duc
hieu ve » hieu va, hieu van
lang xa » lang ha, lang van
ca tren » cau tren, cu tren, la tren
sach o » sach lo, sac o, sach y
va dan » ca dan, va dao, va dau
dan de » dan den, dang de, van de
de ca » de cua, de cai, de cac

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 o ((lang xa) OR (dang xay)) hoi. hieu ve ((cham xuc) or (cam xuc)) va dan de ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach o ((lang xa) OR (dang xay)) hoi. hieu ve ((cham xuc) OR (cam xuc)) va dan de ca tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach o ((lang xa) OR (dang xay)) hoi. hieu ve ((cham xuc) or (cam xuc)) va dan de ca tren".
• Adding a wildcard symbol may retrieve word variants: thu sach o ((lang xa) OR (dang xay)) hoi. hieu ve ((cham xuc) or (cam xuc)) va dan de ca tren*.