Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
te sach » toc sach
dat cua » dai cua, day cua, mat cua
cac dac » cac dan, cac dai, cac bac
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
y nang » ky nang, ly nang, v nang
ma hoi » xa hoi, ma hoa, me hoi
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 y nang ((ma hoi) OR (mai hoi)). hieu ve ((giao duc) OR (cac dac)) gia thanh dat cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((ma hoi) OR (mai hoi)). hieu ve ((giao duc) or (cac dac)) gia thanh dat cua te~".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) OR (mai hoi)). hieu ve ((giao duc) or (cac dac)) gia thanh dat cua te*.