Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
so hanh » so sanh, so danh, co hanh
hai cua » thai cua, dai cua, hoi cua
hieu ve » hieu va, hieu van
ky lang » ky dang, ky tang, tay lang
ve cac » va cac, vien cac
bac va » ban va, bac ha, tac va
bao va » bao ve, tao va, ban va
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: so hanh ((ky lang) or (ky nang)) van hoa. hieu ve cac ((bac va) or (bao va)) hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so hanh ((ky lang) OR (ky nang)) van hoa. hieu ve cac ((bac va) OR (bao va)) hanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: so hanh ((ky lang) or (ky nang)) van hoa. hieu ve cac ((bac va) or (bao va)) hanh hai cua te*.