Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh ban » thanh san, thanh van, thanh bac
hieu van » hieu va, thien van, lieu va
xa thanh » va thanh, ha thanh, ta thanh
ly quang » le quang, vu quang
ban cua » ban quan
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ((ly hang) or (ly quang)) x hoi. ((hieu ve) OR (hieu van)) cam tuc xa thanh ban cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((ly hang) OR (ly quang)) x hoi. ((hieu ve) OR (hieu van)) cam tuc xa thanh ban cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((ly hang) or (ly quang)) x hoi. ((hieu ve) OR (hieu van)) cam tuc xa thanh ban cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach ((ly hang) or (ly quang)) x hoi. ((hieu ve) OR (hieu van)) cam tuc xa thanh ban cua tre*.