Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach cau he snippets" » "bac cau he snippets", "bach mai he snippets", "sach cap he snippets", "bach cac he snippets", "bach cau ha snippets", "bach cau de 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: (((("bach cau he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bach cau he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach cau he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach cau he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.