Perhaps you should try some spelling variations:
hanh than » hanh han, hanh nhan, hanh phan
than cua » nhan cua, thai cua, ban cua
tan hanh » tan thanh, tang hanh, toan hanh
cua tre » cua te, cuu tre, cua triet
dang xa » dang xay, dang ha, dang va
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
su sai » su tai, su hai, su mai
su dai » sau dai, si dai, su tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sai) OR (su dai)) ky ((dang xa) or (lang xa)) hoi. hieu ve pham duc tan hanh than cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sai) OR (su dai)) ky ((dang xa) OR (lang xa)) hoi. hieu ve pham duc tan hanh than cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sai) OR (su dai)) ky ((dang xa) or (lang xa)) hoi. hieu ve pham duc tan hanh than cua tre*".