Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
thuy san » thuat san, thuy anh
van hanh » van thanh, ban hanh, van anh
lang van » dang van, tang van, hoang van
va tham » van tham, va thanh, va thuat
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
phu san » phi san
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
va cham » va chat
di va » dai va, di vao, doi va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((phu san) or (thuy san)) ky lang van hoi. lieu ((va cham) or (va tham)) xuc van hanh di va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((phu san) OR (thuy san)) ky lang van hoi. lieu ((va cham) OR (va tham)) xuc van hanh di va triet.
• Adding a wildcard symbol may retrieve word variants: ((phu san) or (thuy san)) ky lang van hoi. lieu ((va cham) or (va tham)) xuc van hanh di va triet*.