Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phai cua loc snippets" » "thai cua loc snippets", "hai cua loc snippets", "phat cua loc snippets", "phai chua loc snippets", "phai cua hoc snippets", "phai cua lop 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: (((("phai cua loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phai cua loc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phai cua loc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phai cua loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.