Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap pham doi snippets" » "dap phap doi snippets", "tap pham doi snippets", "san pham doi snippets", "dap pham do snippets", "dap pham moi snippets", "dap pham voi 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: (((("dap pham doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dap pham doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap pham doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap pham doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.