Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
ve cham » va cham, ve chat, vu cham
tu sach » thu sach, su sach, tu cach
tu nang » tru nang, tu nong, tu nano
te sach » toc sach
hieu ve » hieu va, hieu van
le cua » ly 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: ((tu sach) OR (te sach)) tu nang x hoi. hieu ve cham soc ((va hanh) or (van hanh)) le cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) tu nang x hoi. hieu ve cham soc ((va hanh) OR (van hanh)) le cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) tu nang x hoi. hieu ve cham soc ((va hanh) or (van hanh)) le cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) tu nang x hoi. hieu ve cham soc ((va hanh) or (van hanh)) le cua triet*.