Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan thi co snippets" » "pham thi co snippets", "tran thi co snippets", "phan tu co snippets", "phan thi mo snippets", "phan thi cu snippets", "phan thi bo 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: (((("phan thi 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: (((("phan thi co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan thi co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan thi co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.