Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc tich co snippets" » "hoc lich co snippets", "ho tich co snippets", "hoc dich co snippets", "hoc tich so snippets", "hoc trinh co snippets", "hoc tich bao 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: (((("hoc tich co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc tich co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc tich co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc tich co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.