Perhaps you should try some spelling variations:
hieu nghe » lieu nghe, hiem ngheo, nhiem nghe
dang khai » dang khoi, quang khai, dang thi
nghe nam » nghe lam, nghiep nam, nghe nano
dang hai » hang hai, dung hai, dong hai
nang mai » nang ma, nang tai, lang mai
sach ky » sac ky, sach ty, sach kem
mai hoi » mai khoi, dai hoi, lai hoi
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: su ((sach ky) OR (sach y)) nang mai hoi. hieu nghe nam thu xe ((dang hai) or (dang khai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach y)) nang mai hoi. hieu nghe nam thu xe ((dang hai) OR (dang khai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach y)) nang mai hoi. hieu nghe nam thu xe ((dang hai) or (dang khai)) cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sach y)) nang mai hoi. hieu nghe nam thu xe ((dang hai) or (dang khai)) cua te*.