Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
phat xuc » chat xuc, phat xuat, phap xu
lang di » lang dai, hang di, lang du
va lang » va nang, hoa lang
hieu va » lieu va, hieu qua
tu cach » tu cac
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thuat sach)) ky nang ((x hoi) OR (o hoi)). hieu va phat xuc va lang di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thuat sach)) ky nang ((x hoi) OR (o hoi)). hieu va phat xuc va lang di cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (thuat sach)) ky nang ((x hoi) OR (o hoi)). hieu va phat xuc va lang di cua triet*".