Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi bac cau snippets" » "khoi bay cau snippets", "hoi bac cau snippets", "kho bac cau snippets", "khoi bach cau snippets", "khoi ba cau snippets", "khoi 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: (((("khoi 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: (((("khoi bac cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi bac cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi bac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.