Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
va cham » va tham
va chat » van chat, va phat, cao chat
sach ky » sac ky, sach y, sach ty
duc ban » duc tan, duc van, duc man
dua ban » dia ban, cua ban, qua ban
lai cua » dai cua, hai cua, lai chau
su sach » so sach, vu sach
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: su sach ky nang x hoi. hieu ((va cham) or (va chat)) ((duc ban) OR (dua ban)) hanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ((va cham) OR (va chat)) ((duc ban) OR (dua ban)) hanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu ((va cham) or (va chat)) ((duc ban) OR (dua ban)) hanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ((va cham) or (va chat)) ((duc ban) OR (dua ban)) hanh lai cua triet*.