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