Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
van tai » von tai, van tuan
van van » van ban, tan van, san van
xuc van » duc van, luc van, vuc van
nam xuc » cam xuc, nam xua, nam thuc
hieu va » lieu va, hieu qua
vu sach » vu bach, su sach, vu khach
ly nang » ky nang, ly hang, ly vang
va nam » van nam, ha nam, va nay
y nang » ky nang, v nang, may nang
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) or (vu sach)) ((y nang) OR (ly nang)) xa hoi. hieu va nam xuc van van tai cuc te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu sach)) ((y nang) OR (ly nang)) xa hoi. hieu va nam xuc van van tai cuc te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (vu sach)) ((y nang) OR (ly nang)) xa hoi. hieu va nam xuc van van tai cuc te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) ((y nang) OR (ly nang)) xa hoi. hieu va nam xuc van van tai cuc te*.