Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao hai so snippets" » "cao khai so snippets", "cao tai so snippets", "co hai so snippets", "cao dai so snippets", "cao thai son 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: (((("cao hai 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: (((("cao hai so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao hai so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao hai so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.