Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan khac mo snippets" » "quang khai mo snippets", "quan ha mo snippets", "quan hai mo snippets", "quan khac do snippets", "quan khac co snippets", "quan khai mo 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: (((("quan khac mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan khac mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan khac mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan khac mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.