Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, nang ma, mang xa
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
cac loc » cac lop, cac toc, cac hoc
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
lang xa » lang ha, dang xay, lang van
loc va » hoc va, luc 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) or (su sach)) ky ((nang xa) or (lang xa)) hoi. hieu va cac loc va hanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ky ((nang xa) OR (lang xa)) hoi. hieu va cac loc va hanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (su sach)) ky ((nang xa) or (lang xa)) hoi. hieu va cac loc va hanh vai cua viet*.