Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"quy van phuc snippets" » "quy van phuoc snippets", "quy van phu snippets", "quy van khuc snippets", "duy van phuc snippets", "qua van phuc snippets", "que van phuc snippets", "quy van phuc slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("quy van phuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quy van phuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quy van phuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quy van phuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.