Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu bo ve snippets" » "hieu so ve snippets", "thieu so ve snippets", "hieu bao ve snippets", "hieu bo de snippets", "hieu bo va 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: (((("hieu bo ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu bo ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu bo ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu bo ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.