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