Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
ban hanh » ban hang
cuu tre » cua tre, cau tren, cau treo
tang ha » lang ha, tang ma, trung ha
hai cuu » hai cua, hai chu, hai cuc
lang xa » lang ha, dang xay, lang van
duc ban » duc tan, duc van, dua ban
su cac » tu cac, su cao, su can
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky ((tang ha) or (lang xa)) hoi. hieu ((ve cam) or (ve cac)) duc ban hanh hai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky ((tang ha) OR (lang xa)) hoi. hieu ((ve cam) OR (ve cac)) duc ban hanh hai cuu tre.
• Adding a wildcard symbol may retrieve word variants: su cac ky ((tang ha) or (lang xa)) hoi. hieu ((ve cam) or (ve cac)) duc ban hanh hai cuu tre*.