Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
hieu cai » hieu cac, hieu ca, hieu bai
hieu chi » hieu cac, hieu moi
ty nang » ky nang, ty xang, ty hang
sach ty » sach y, sach tu, sach thu
thue va » thuc va, thuyet va, thuc vat
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ty nang x hoi. ((hieu cai) or (hieu chi)) nam ((tu va) or (thue va)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang x hoi. ((hieu cai) OR (hieu chi)) nam ((tu va) OR (thue va)) hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: thuat sach ty nang x hoi. ((hieu cai) or (hieu chi)) nam ((tu va) or (thue va)) hanh vi cua triet*.