Perhaps you should try some spelling variations:
ban hanh » ban hang
sanh ky » sang ky, nganh ky, thanh ky
hanh ky » hanh kem
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
tuc ban » thuc ban, truc ban, tu ban
doi cua » hoi cua
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sanh ky) OR (hanh ky)) nang xa hoi. hieu ve cac tuc ban hanh ((doi cua) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sanh ky) OR (hanh ky)) nang xa hoi. hieu ve cac tuc ban hanh ((doi cua) OR (dai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sanh ky) OR (hanh ky)) nang xa hoi. hieu ve cac tuc ban hanh ((doi cua) or (dai cua)) triet*".