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