Perhaps you should try some spelling variations:
cong nguong » cong nguon, cong thuong, cong luong
nguong dan » huong dan
tieu tinh » trieu tinh, tieu trinh, lieu tinh
anh mang » hanh mang, anh bang, anh dang
mang cua » manh cua, dung cua, ban cua
than tap » toan tap, han tap, phan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu tinh - anh mang cua cong nguong dan ((than tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - anh mang cua cong nguong dan ((than tap) OR (toan ban))*.