Perhaps you should try some spelling variations:
hanh thanh » nhanh thanh, thanh thanh, khanh thanh
cua triet » cua viet, su triet, va triet
thanh di » thanh doi, thanh de, thanh do
cuu hanh » cuu thanh, luu hanh, cuu anh
va chat » van chat, va phat, cao chat
tu sach » thu sach, su sach, te sach
va cham » va tham
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
di cua » dai cua, doi cua, de cua

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 ((y nang) OR (ly nang)) xa hoi. hieu ((va cham) or (va chat)) cuu hanh thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ly nang)) xa hoi. hieu ((va cham) OR (va chat)) cuu hanh thanh di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) OR (ly nang)) xa hoi. hieu ((va cham) or (va chat)) cuu hanh thanh di cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) OR (ly nang)) xa hoi. hieu ((va cham) or (va chat)) cuu hanh thanh di cua triet*.