Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi tai moi snippets" » "phoi tai moi snippets", "pham tai moi snippets", "phi tai mui snippets", "phi thi moi snippets", "phi dai moi 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 moi 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 moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi tai moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi tai moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.