Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham via cua snippets" » "pham va cua snippets", "pham vi cua snippets", "pham dia cua snippets", "pham gia cua snippets", "pham gian cua snippets", "pham giau cua 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: (((("pham via cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham via cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham via cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham via cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.