Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
sua chu » sua chua, cua chu, bua chu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh va » hang va, hanh vi
cac duc » cac du, cao duc, cac dac
sac ky » cac ky
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: tu ((sac ky) or (sai ky)) nang xa hoi. hieu ve cac duc va ((hanh va) or (hanh tai)) sua chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) nang xa hoi. hieu ve cac duc va ((hanh va) OR (hanh tai)) sua chu.
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (sai ky)) nang xa hoi. hieu ve cac duc va ((hanh va) or (hanh tai)) sua chu*.