Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham duc » pham duc, cham soc, pham duy
van hanh » van thanh, ban hanh, van anh
dieu cua » dieu tra
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
duc van » duc va, duc tan, duc manh
de cua » le cua, te cua

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 ky nang x ho. lieu va cham duc van hanh ((de cua) OR (dieu cua)) triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang x ho. lieu va cham duc van hanh ((de cua) OR (dieu cua)) triet".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang x ho. lieu va cham duc van hanh ((de cua) OR (dieu cua)) triet*.