Perhaps you should try some spelling variations:
ban hanh » ban hang
hanh hai » thanh hai, nhanh hai, hang hai
sach ky » sach y, sach ty, sach kem
hieu ve » hieu va, hieu van
hai cua » thai cua, dai cua, hoi cua
sac ky » cac ky
ve cac » va cac, vien cac
cac co » cac cong
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((((sach ky) OR (sac ky))) or (sai ky)) nang x hoi. hieu ve cac co ban hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((((sach ky) OR (sac ky))) OR (sai ky)) nang x hoi. hieu ve cac co ban hanh hai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((((sach ky) OR (sac ky))) or (sai ky)) nang x hoi. hieu ve cac co ban hanh hai cua te*".