Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat ngap can snippets" » "dat nghe can snippets", "dat ngan can snippets", "dat nhap ca snippets", "dat ngan han 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: (((("dat ngap can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat ngap can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat ngap can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat ngap can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.