Perhaps you should try some spelling variations:
thu nang » thi nang, thu hang, tho nang
nam hang » nam thang, nam khang, nam dang
thu bang » thu ban, thu hang, chu bang
te sach » toc sach
cac toc » cac toi, cac nuoc, cac thoi
hieu va » lieu va, hieu qua
ma hoi » mai hoi, xa hoi, ma hoa
cac oc » cac hoc, cac o, cac oi
va cua » va chua, via cua, ca cua
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 ((thu nang) OR (thu bang)) ma hoi. hieu va ((cac oc) OR (cac toc)) nam hang va cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thu nang) OR (thu bang)) ma hoi. hieu va ((cac oc) or (cac toc)) nam hang va cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach ((thu nang) OR (thu bang)) ma hoi. hieu va ((cac oc) or (cac toc)) nam hang va cua te*.