Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh tri » thanh tri, hanh tai, hanh trinh
tu cach » tu cac
nang xa » lang xa, nang ma, mang xa
cau tuc » cau truc, cau tu, cau luc
va hanh » van hanh, va thanh, va danh
va cau » van cau, va cac, va dau
tuc va » thuc va, truc va, tuc xa
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thu sach)) ky ((nang xa) or (nang x)) hoi. lieu va cau tuc va hanh tri cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ky ((nang xa) OR (nang x)) hoi. lieu va cau tuc va hanh tri cua su.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ky ((nang xa) or (nang x)) hoi. lieu va cau tuc va hanh tri cua su*.