Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh ky » hanh ky, than ky, thanh tay
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
lanh ky » hanh ky, nganh ky, lanh lay
va hanh » van hanh, va danh, ban hanh
di cua » dai cua, doi cua, de cua
ve cao » va cao, ve bao, ve cac
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: thuat ((lanh ky) OR (thanh ky)) nang xa hoi. hieu ve cao su ((va hanh) or (va thanh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((lanh ky) OR (thanh ky)) nang xa hoi. hieu ve cao su ((va hanh) OR (va thanh)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((lanh ky) OR (thanh ky)) nang xa hoi. hieu ve cao su ((va hanh) or (va thanh)) di cua te".
• Adding a wildcard symbol may retrieve word variants: thuat ((lanh ky) OR (thanh ky)) nang xa hoi. hieu ve cao su ((va hanh) or (va thanh)) di cua te*.