Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quy pham o2 snippets" » "su pham o2 snippets", "quy chau o2 snippets", "quy pham o snippets", "quy pham 2 snippets", "quy pham hoa 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: (((("quy pham o2 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 pham o2 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quy pham o2 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quy pham o2 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.