Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
ve chat » va chat, van chat
va cham » va chat, va tham
han tri » han tai, van tri, thanh tri
su sac » su sach, su xac
su cac » tu cac, su cao, su can
tuc va » thuc va, truc va, tuc xa
va han » va phan, van han, va hanh
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sac) OR (su cac)) ky nang xa hoi. hieu ((ve chat) or (va cham)) tuc va han tri va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sac) OR (su cac)) ky nang xa hoi. hieu ((ve chat) OR (va cham)) tuc va han tri va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) OR (su cac)) ky nang xa hoi. hieu ((ve chat) or (va cham)) tuc va han tri va thiet".
• Adding a wildcard symbol may retrieve word variants: ((su sac) OR (su cac)) ky nang xa hoi. hieu ((ve chat) or (va cham)) tuc va han tri va thiet*.