Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
lang xa » lang ha, dang xay, lang van
van anh » tuan anh, van minh
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
cua te » cua tu
d cua » de cua, do cua, da cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky ((mang may) or (lang xa)) hoi. hieu van nam thuc ((van anh) OR (van thanh)) d cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky ((mang may) OR (lang xa)) hoi. hieu van nam thuc ((van anh) OR (van thanh)) d cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky ((mang may) or (lang xa)) hoi. hieu van nam thuc ((van anh) OR (van thanh)) d cua te*".