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