Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc pham oc snippets" » "thuc pham o snippets", "thuc pham ngoc snippets", "thuc pham duc snippets", "thu pham oc 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: (((("thuc pham oc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc pham oc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc pham oc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc pham oc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.