Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
sach ty » sach y, sach tu, sach thu
thi duc » thi cuc, thi dua, thi du
dao thi » do thi, dan thi, dang thi
duc tre » duoc tren, duc tien
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang

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 ty lang xa hoi. hieu van ((((lam xuc) OR (lam duoc))) or (cam xuc)) ca dao thi duc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty lang xa hoi. hieu van ((((lam xuc) OR (lam duoc))) OR (cam xuc)) ca dao thi duc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty lang xa hoi. hieu van ((((lam xuc) OR (lam duoc))) or (cam xuc)) ca dao thi duc tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ty lang xa hoi. hieu van ((((lam xuc) OR (lam duoc))) or (cam xuc)) ca dao thi duc tre*.