Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac nghi que snippets" » "ca nghi que snippets", "cac nghe que snippets", "tac nghi que snippets", "cac nghi le snippets", "cac nghi tu 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: (((("cac nghi 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: (((("cac nghi que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac nghi que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac nghi que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.