Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang van dem snippets" » "dang van dem snippets", "hoang van dem snippets", "trong van dem snippets", "tang van diem snippets", "tang van de snippets", "tang van der snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tang van dem snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang van dem snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang van dem snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang van dem snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.