Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
manh hanh » xanh hanh, danh thanh, minh thanh
hanh va » hang va, hanh vi
cam suc » cam xuc, cao suc
te sach » toc sach
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
va cua » va chua, via cua, ca 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 ((ty nang) or (ty hang)) xa hoi. hieu ve ((cam suc) or (cham soc)) manh hanh va cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) xa hoi. hieu ve ((cam suc) OR (cham soc)) manh hanh va cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ty hang)) xa hoi. hieu ve ((cam suc) or (cham soc)) manh hanh va cua triet*.