Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc sen co snippets" » "phuc se co snippets", "phu yen co snippets", "phu san co snippets", "phuc san co snippets", "phuc nen co 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: (((("phuc sen co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc sen co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc sen co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc sen co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.