Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
va cham » va chat, va tham
soc van » hoc van, oc van, sac van
doi cua » dai cua, hoi cua
tu ban » thu ban, te ban
ha hoi » hoa hoi, ha noi, xa hoi
di cua » dai cua, de cua, do cua
tu san » thu san, tu can, vu san

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 (tu ban)) ky lang ha hoi. lieu va cham soc van hanh ((di cua) or (doi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu ban)) ky lang ha hoi. lieu va cham soc van hanh ((di cua) OR (doi cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (tu ban)) ky lang ha hoi. lieu va cham soc van hanh ((di cua) or (doi cua)) triet*".