Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"xen dong son snippets" » "den dong son snippets", "xen tong son snippets", "dien dong son snippets", "xen dong von snippets", "xen dong san snippets", "xen hoang son 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: (((("xen dong son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xen dong son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( xen dong son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xen dong son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.