Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan xay que snippets" » "phan dau que snippets", "phan lap que snippets", "van xay que snippets", "phan cay que snippets", "phan xa que 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: (((("phan xay que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan xay que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan xay que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan xay que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.