Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoang le dk snippets" » "hoang de dk snippets", "hong le dk snippets", "hoang lam dk snippets", "hoang le d snippets", "hoang le di 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: (((("hoang le dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang le dk snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang le dk snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang le dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.