Perhaps you should try some spelling variations:
vanh tri » van tri, vanh tai, thanh tri
te sach » toc sach
ky tang » ky nang, ky dang, kho tang
va vanh » va van, va danh, va hanh
hieu va » lieu va, hieu qua
ky lang » ky nang, ky dang, tay lang
su sach » so sach, vu sach
va dao » ca dao
dao xu » dai xu, dao du, dao vu
cua te » cua tu
xu va » xu van, tu va, su va

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) or (su sach)) ((ky lang) or (ky tang)) xa hoi. hieu va dao xu va vanh tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) ((ky lang) OR (ky tang)) xa hoi. hieu va dao xu va vanh tri cua te.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (su sach)) ((ky lang) or (ky tang)) xa hoi. hieu va dao xu va vanh tri cua te*.