Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cay hanh voi snippets" » "cay lanh voi snippets", "cay xanh voi snippets", "cac thanh voi snippets", "cay hanh vi snippets", "cay hanh noi snippets", "cay 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: (((("cay 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: (((("cay hanh voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cay hanh voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cay hanh voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.