Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho hanh voi snippets" » "kho canh voi snippets", "kho danh voi snippets", "khong hanh voi snippets", "kho hanh vi snippets", "kho hanh noi snippets", "kho hanh moi 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: (((("kho hanh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho hanh voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho hanh voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho hanh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.