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