Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham loc » cham soc, chon loc, cham o
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
te sach » toc sach
vu sach » vu bach, su sach, vu khach
v nang » va nang, vu nang, van nang
y nang » ky nang, ly nang, may nang
loc va » hoc va, luc va
vi cua » vai cua, di cua

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) or (vu sach)) ((y nang) or (v nang)) xa hoi. hieu va cham loc va hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (vu sach)) ((y nang) OR (v nang)) xa hoi. hieu va cham loc va hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (vu sach)) ((y nang) or (v nang)) xa hoi. hieu va cham loc va hanh vi cua triet*.