Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
ve triet » su triet
hanh vu » hanh vi, hanh va, hanh tu
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
xay hoi » xa hoi, tay hoi, cay phoi
san ky » sang ky, van ky, dan ky
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam
ky van » ly van, ty van, ky va
te san » te ban, ke san, tu san

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

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