Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nao cap chi snippets" » "cao cap chi snippets", "nang cap chi snippets", "nuoc cap chi snippets", "nao cap cho snippets", "nao tap chi snippets", "nao ca 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: (((("nao cap 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: (((("nao cap chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nao cap chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao cap chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.