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