Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"buc trinh co snippets" » "buc tranh co snippets", "qua trinh co snippets", "quy trinh co snippets", "buc trinh do snippets", "buc trinh cong snippets", "buc trinh hoa 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: (((("buc trinh 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: (((("buc trinh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( buc trinh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("buc trinh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.