Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc hao mon snippets" » "duc hau mon snippets", "duc ha mon snippets", "duc dao mon snippets", "duc hat mon snippets", "duc ho 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: (((("duc hao mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc hao mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc hao mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc hao mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.