Perhaps you should try some spelling variations:
thien van » thi van
xach tay » canh tay
van cham » van chat, van tham, va cham
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
va han » va phan, van han, va hang
tai va » thai va, mai va, tri va
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: tu ((xach tay) or (sach y)) nang xa hoi. thien van cham soc ((va han) OR (va hanh)) tai va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((xach tay) OR (sach y)) nang xa hoi. thien van cham soc ((va han) OR (va hanh)) tai va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((xach tay) or (sach y)) nang xa hoi. thien van cham soc ((va han) OR (va hanh)) tai va thiet".
• Adding a wildcard symbol may retrieve word variants: tu ((xach tay) or (sach y)) nang xa hoi. thien van cham soc ((va han) OR (va hanh)) tai va thiet*.