Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach thu » sach thue, sach thieu, sach tham
van hanh » van thanh, ban hanh, van anh
ve triet » va trien, su triet
nang xa » lang xa, nang ma, mang xa
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » va thanh, va danh, ban hanh
ki ve » ke ve, gi ve, vi ve

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 thu ((nang xa) or (nang x)) hoi. lieu va cac xuc ((va hanh) or (van hanh)) ki ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach thu ((nang xa) OR (nang x)) hoi. lieu va cac xuc ((va hanh) OR (van hanh)) ki ve triet.
• Adding a wildcard symbol may retrieve word variants: thu sach thu ((nang xa) or (nang x)) hoi. lieu va cac xuc ((va hanh) or (van hanh)) ki ve triet*.