Perhaps you should try some spelling variations:
lanh dai » lanh dao, lanh hai, lang dai
van lanh » van anh, van hanh, van manh
nang xa » lang xa, nang ma, mang xa
duc van » duc va, duc tan, duc manh
tu san » thu san, tu ban, tu can
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
san ky » sang ky, van ky, dan ky
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: tu san ky ((nang xa) OR (nang x)) hoi. hieu ((ve cam) or (ve cac)) duc van lanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky ((nang xa) OR (nang x)) hoi. hieu ((ve cam) OR (ve cac)) duc van lanh dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky ((nang xa) OR (nang x)) hoi. hieu ((ve cam) or (ve cac)) duc van lanh dai cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ky ((nang xa) OR (nang x)) hoi. hieu ((ve cam) or (ve cac)) duc van lanh dai cua te*.