Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc duoc den snippets" » "hoc nuoc den snippets", "hoa duoc den snippets", "hoc dung den snippets", "hoc duoc dien snippets", "hoc duoc dan snippets", "hoc duoc dong 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: (((("hoc duoc den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc duoc den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc duoc den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc duoc den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.