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