Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh xuc » thanh xuan, thanh huy, hanh xu
cau tren » cu tren, dau tren, ca tren
hanh tai » thanh tai, hang tai, han tai
hieu van » hieu va, thien van, lieu va
thu sach » thuat sach, thuoc sach, thu hoach
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
va hanh » van hanh, va thanh, va danh
tu sach » su sach, te sach, tu cach
la tren » loai tren, dua tren, dat tren
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (tu sach)) tu nang xa hoi. hieu van thanh xuc va hanh tai ((cau tren) or (la tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) tu nang xa hoi. hieu van thanh xuc va hanh tai ((cau tren) OR (la tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) tu nang xa hoi. hieu van thanh xuc va hanh tai ((cau tren) or (la tren))*".