Perhaps you should try some spelling variations:
tham nang » tham lang, tham nhung, thuat nang
nham nang » phap nang, cam nang, kha nang
te sach » toc sach
toc nam » hoc nam, oc nam, goc nam
vai cua » dai cua, hai cua, lai cua
dan vai » dan va, dan tai, dan vat
hieu va » lieu va
nam dan » nam dinh
cac toc » cac toi, cac nuoc, cac thoi
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tham nang) OR (nham nang)) xa hoi. ((hieu va) OR (hieu qua)) cac toc nam dan vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tham nang) OR (nham nang)) xa hoi. ((hieu va) or (hieu qua)) cac toc nam dan vai cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach ((tham nang) OR (nham nang)) xa hoi. ((hieu va) or (hieu qua)) cac toc nam dan vai cua te*.