Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc dung can snippets" » "hoc ung can snippets", "hoc dan can snippets", "hoc cong can snippets", "hoc dung cac snippets", "hoc dung san snippets", "hoc 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: (((("hoc 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: (((("hoc dung can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc dung can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc dung can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.