Perhaps you should try some spelling variations:
danh hai » dang hai, lanh hai, manh hai
su sach » so sach
hai cua » thai cua, dai cua, hoi cua
vu sach » vu bach, vu khach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
xuc va » duc va, tuc va, luc va
va lam » van lam
va lap » va dap
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (vu sach)) ty nang xa hoi. lieu ((va lam) or (va lap)) xuc va danh hai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ty nang xa hoi. lieu ((va lam) OR (va lap)) xuc va danh hai cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ty nang xa hoi. lieu ((va lam) or (va lap)) xuc va danh hai cua su".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ty nang xa hoi. lieu ((va lam) or (va lap)) xuc va danh hai cua su*.