Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham loc » cham soc, chon loc, hau loc
te sach » toc sach
va danh » va dinh, va dan, va hanh
hieu va » lieu va, hieu qua
danh di » danh du, xanh di, danh dien
cham o » cham soc
y nang » ky nang, ly nang, v nang
cua su » qua su
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: te sach y nang x hoi. hieu va ((cham loc) OR (cham o)) va danh di ((cua triet) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. hieu va ((cham loc) OR (cham o)) va danh di ((cua triet) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang x hoi. hieu va ((cham loc) OR (cham o)) va danh di ((cua triet) or (cua su))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. hieu va ((cham loc) OR (cham o)) va danh di ((cua triet) or (cua su))*.