Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
tu sach » thu sach, su sach, te sach
vai cuu » vai cua
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ly hang » ly quang
ty nang » ky nang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
luc va » tuc va, loc va

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 ((ty nang) or (ly hang)) xa hoi. hieu ve cham ((luc va) OR (duc va)) danh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ly hang)) xa hoi. hieu ve cham ((luc va) OR (duc va)) danh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) or (ly hang)) xa hoi. hieu ve cham ((luc va) OR (duc va)) danh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) or (ly hang)) xa hoi. hieu ve cham ((luc va) OR (duc va)) danh vai cuu tre*.