Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach van noi snippets" » "bach dan noi snippets", "cach van noi snippets", "bach dang noi snippets", "bach van loi snippets", "bach van ngoc 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: (((("bach van 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: (((("bach van noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach van noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach van noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.