Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"data san chi snippets" » "data phan chi snippets", "dac san chi snippets", "dam san chi snippets", "data van chi snippets", "data luan chi snippets", "data toan chi 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: (((("data san chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data san chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data san chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data san chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.