Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu dong don snippets" » "thuy dong don snippets", "tu dong don snippets", "thu cong don snippets", "thu dong von snippets", "thu dong son snippets", "thu dong mon 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 dong don 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 dong don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu dong don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu dong don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.