Perhaps you should try some spelling variations:
cau phuc » cau truc, chau phu, huu phuc
tu sach » thu sach, su sach, te sach
hang vi » hang va, hanh vi, hang di
cau luc » cau truc
ca tren » cau tren, cu tren, la tren
hieu ve » hieu va, hieu van
ty nang » ky nang, ty hang, ly nang
x hoi » xa hoi, o hoi, x ho
vi ca » vit ca, li ca, va ca

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 (ty xang)) x hoi. hieu ve ((cau luc) OR (cau phuc)) ngan hang vi ca tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ty xang)) x hoi. hieu ve ((cau luc) OR (cau phuc)) ngan hang vi ca tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) or (ty xang)) x hoi. hieu ve ((cau luc) OR (cau phuc)) ngan hang vi ca tren".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) or (ty xang)) x hoi. hieu ve ((cau luc) OR (cau phuc)) ngan hang vi ca tren*.