Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ve triet » va trien, su triet
ve cham » va cham, ve chat, vu cham
va kinh » va tinh, qua kinh
kinh cu » dinh cu, kinh co, dinh cuu
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
va cam » va cham, va cac, va cao
cu ve » cuu ve, cua ve, cu va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang x ho. hieu ((((ve cham) or (ve cac))) or (va cam)) duc va kinh cu ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang x ho. hieu ((((ve cham) OR (ve cac))) OR (va cam)) duc va kinh cu ve triet.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang x ho. hieu ((((ve cham) or (ve cac))) or (va cam)) duc va kinh cu ve triet*.