Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong trao ho snippets" » "phong trao ho snippets", "dong tranh ho snippets", "dong tai ho snippets", "dong trao tho snippets", "dong tao ho snippets", "dong trac ho 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 trao ho 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 trao ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong trao ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong trao ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.