Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
tang mai » tang ma, tang tai, lang mai
danh dau » lanh dao, hang dau, danh tu
va danh » va dinh, va dan, va hanh
te sach » toc sach
ve cham » va cham, vu cham, ve chim
mai hoi » mai khoi, dai hoi, lai hoi
ve chat » va chat, van chat
y tang » ky tang, 6 tang, 7 tang
luc va » duc va, tuc va, loc va

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 y tang mai hoi. hieu ((ve cham) OR (ve chat)) luc va danh dau ((cua triet) OR (va triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y tang mai hoi. hieu ((ve cham) OR (ve chat)) luc va danh dau ((cua triet) or (va triet))~".
• Adding a wildcard symbol may retrieve word variants: te sach y tang mai hoi. hieu ((ve cham) OR (ve chat)) luc va danh dau ((cua triet) or (va triet))*.