Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
toc sach » hoc sach, doc sach, thuoc sach
nang xa » nang x, lang xa, nang ma
vu cham » va cham, tu cham, qua cham
vu kham » vu khanh
soc van » hoc van, oc van, sac van
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) or (thu hoach)) ky nang xa hoi. hieu ((vu cham) or (vu kham)) soc van hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thu hoach)) ky nang xa hoi. hieu ((vu cham) OR (vu kham)) soc van hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (thu hoach)) ky nang xa hoi. hieu ((vu cham) or (vu kham)) soc van hanh di cua triet*.