Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh qua » thanh qua, hanh sua, hanh cua
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
ve chat » va chat, van chat
va hanh » van hanh, va thanh, va danh
qua cua » quan cua, quang cua, qua quan
va cam » va cham, va cac, va cao

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 ty nang ma hoa. hieu ((ve chat) or (va cam)) duc va hanh qua cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ma hoa. hieu ((ve chat) OR (va cam)) duc va hanh qua cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ma hoa. hieu ((ve chat) or (va cam)) duc va hanh qua cua triet*.