Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"boc tran 05 snippets" » "soc trang 05 snippets", "bich tran 05 snippets", "buc tranh 05 snippets", "boc tran 05 slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("boc tran 05 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("boc tran 05 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( boc tran 05 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("boc tran 05 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.