Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
thuy san » thuat san, thuy anh
van hanh » van thanh, ban hanh, van anh
va cham » va chat, va tham
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, vuc van
thu san » thu ban, phu san, thuat san
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
va cam » va cac, va cao, va cai
di su » doi su, ki su, da su

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

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