Perhaps you should try some spelling variations:
tu sach » thu sach, te sach, tu cach
van tri » van tai, van thi, van toi
van van » van ban, tan van, san van
xuc van » duc van, luc van, vuc van
cua tuc » cua duc, cua tu, cua thuoc
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
va dau » va dao
va cau » van cau, va cac, va cao

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 (su sach)) ty nang xa hoi. lieu ((va cau) OR (va dau)) xuc van van tri cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty nang xa hoi. lieu ((va cau) OR (va dau)) xuc van van tri cua tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ty nang xa hoi. lieu ((va cau) OR (va dau)) xuc van van tri cua tuc".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ty nang xa hoi. lieu ((va cau) OR (va dau)) xuc van van tri cua tuc*.