Perhaps you should try some spelling variations:
vu khac » vu kham, vu khanh, bui khac
khac ty » khac thi
xang xa » lang xa, mang xa, ang xa
truc va » thuc va, thuc vat, trung va
tinh vi » trinh vi, tinh voi, tinh va
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khac ty xang xa hoi. lieu ((va cam) OR (va cao)) ((truc va) or (tuc xa)) tinh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khac ty xang xa hoi. lieu ((va cam) OR (va cao)) ((truc va) OR (tuc xa)) tinh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khac ty xang xa hoi. lieu ((va cam) OR (va cao)) ((truc va) or (tuc xa)) tinh vi cua te".
• Adding a wildcard symbol may retrieve word variants: vu khac ty xang xa hoi. lieu ((va cam) OR (va cao)) ((truc va) or (tuc xa)) tinh vi cua te*.