Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi ta cau snippets" » "khi ta cau snippets", "khoi va cau snippets", "khoi xa cau snippets", "khoi tao cau snippets", "khoi tra cau 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 ta 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 ta cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi ta cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi ta cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.