Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tay lang » tai lang, tay tang, tay quang
tay dung » xay dung, tac dung, tay nung
va minh » van minh, vua minh, va kinh
hai cuc » tai cuc, hai cua, thai cua
hai cuu » hai cua, hai chu, thai cua
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
nam tu » nam thu, nam thuc
ve nam » he nam, va nam, le nam

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 ((tay lang) or (tay dung)) xay hoi. hieu ve nam tu va minh ((hai cuu) OR (hai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((tay lang) OR (tay dung)) xay hoi. hieu ve nam tu va minh ((hai cuu) OR (hai cuc)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((tay lang) or (tay dung)) xay hoi. hieu ve nam tu va minh ((hai cuu) OR (hai cuc)) tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((tay lang) or (tay dung)) xay hoi. hieu ve nam tu va minh ((hai cuu) OR (hai cuc)) tre*.