Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thanh dat » thanh san, thanh hai, thanh ha
hieu van » hieu va, thien van, lieu va
te sach » toc sach
van cao » van dao, van bao, van hao
cao duc » dao duc, cao suc, giao duc
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, me hoi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((ma hoi) or (ma hoa)). hieu van cao duc va ((thanh dat) OR (thanh van)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (ma hoa)). hieu van cao duc va ((thanh dat) OR (thanh van)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((ma hoi) or (ma hoa)). hieu van cao duc va ((thanh dat) OR (thanh van)) cua te*".