Perhaps you should try some spelling variations:
hanh tri » thanh tri, hanh tai, hanh trinh
va triet » va thiet, ve triet, cua triet
va trien » va truyen, va thiet, va tuyen
thu san » thuy san, thu ban, phu san
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
tu san » tu ban, tu can, vu san
soc va » hoc va, loc va, doc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) OR (thu san)) ky nang xa hoi. hieu va cham soc va hanh tri ((va triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (thu san)) ky nang xa hoi. hieu va cham soc va hanh tri ((va triet) OR (va trien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (thu san)) ky nang xa hoi. hieu va cham soc va hanh tri ((va triet) or (va trien))".
• Adding a wildcard symbol may retrieve word variants: ((tu san) OR (thu san)) ky nang xa hoi. hieu va cham soc va hanh tri ((va triet) or (va trien))*.