Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh dat » tinh da, dinh dat, tinh dau
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
va tinh » may tinh
va cam » va cac, va cao, va cai
luc va » duc va, tuc va, loc va
cua te » cua tu

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 ky nang x ho. hieu ((va cam) or (va cham)) luc va tinh dat ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x ho. hieu ((va cam) OR (va cham)) luc va tinh dat ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x ho. hieu ((va cam) or (va cham)) luc va tinh dat ((cua triet) or (cua te))*.