Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh tai » thanh hai, thanh toan, doanh tai
van thanh » ban thanh, van tuan
thu sach » tu sach, thuoc sach, thu hoach
cao duc » dao duc, cao suc, giao duc
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam duc » cam xuc, pham duc, nam duoc
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: ((thu sach) OR (thuat sach)) ly nang xa hoi. hieu va ((cam duc) or (cao duc)) van thanh tai cuc te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuat sach)) ly nang xa hoi. hieu va ((cam duc) OR (cao duc)) van thanh tai cuc te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (thuat sach)) ly nang xa hoi. hieu va ((cam duc) or (cao duc)) van thanh tai cuc te".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (thuat sach)) ly nang xa hoi. hieu va ((cam duc) or (cao duc)) van thanh tai cuc te*.