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