Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat pham can snippets" » "hai pham can snippets", "ha pham can snippets", "hao pham can snippets", "hat pham van snippets", "hat pham lan snippets", "hat pham ca 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: (((("hat pham can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat pham can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat pham can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat pham can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.