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