Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chung cu so snippets" » "chung cu soc snippets", "chung cua so snippets", "chung co so snippets", "nhung cu so snippets", "cung cu so 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: (((("chung cu 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: (((("chung cu so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung cu so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung cu so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.