Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap van tom snippets" » "tap va tom snippets", "tap vat tom snippets", "tap quan tom snippets", "tap van tam snippets", "tap van toi snippets", "tap van toa 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: (((("tap van tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap van tom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap van tom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap van tom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.