Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
van thanh » ban thanh, van tuan
tu sach » thu sach, su sach, te sach
sach lo » sach dao, sach doi, sach hoi
lo nang » ho nang, ly nang, loai nang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam duc » cam xuc, pham duc, nam duoc
cao duc » dao duc, giao duc, tao duoc
cao suc » cao su
cuc te » cua te, cuc thue, cuc tieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach lo nang xa hoi. hieu va ((cam duc) or (((cao duc) OR (cao suc)))) van thanh tai cuc te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach lo nang xa hoi. hieu va ((cam duc) OR (((cao duc) OR (cao suc)))) van thanh tai cuc te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach lo nang xa hoi. hieu va ((cam duc) or (((cao duc) OR (cao suc)))) van thanh tai cuc te".
• Adding a wildcard symbol may retrieve word variants: tu sach lo nang xa hoi. hieu va ((cam duc) or (((cao duc) OR (cao suc)))) van thanh tai cuc te*.