Perhaps you should try some spelling variations:
nhanh lang » nhanh thang, nhanh dong, nhanh song
nhung cong » dung cong, thong cong, hang cong
tieu danh » dieu danh, tiep danh, thien danh
nhan dang » nhan dan, phan dang, tran dang
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
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 danh - ((((nhanh lang) OR (nhanh quang))) or (nhan dang)) va nhung cong hach toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu danh - ((((nhanh lang) OR (nhanh quang))) OR (nhan dang)) va nhung cong hach toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu danh - ((((nhanh lang) OR (nhanh quang))) or (nhan dang)) va nhung cong hach toan ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu danh - ((((nhanh lang) OR (nhanh quang))) or (nhan dang)) va nhung cong hach toan ban*.