Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham huu ve snippets" » "pham duc ve snippets", "pham duy ve snippets", "phan huy ve snippets", "pham cuu ve snippets", "pham hua ve snippets", "pham huu va 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 huu ve 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 huu ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham huu ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham huu ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.