Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son van huy slippers" » "song van huy slippers", "san van huy slippers", "son va huy slippers", "son van duy slippers", "son van hung slippers", "son van huy slippery", "son van huy grippers"
"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: (((("son van huy slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son van huy slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son van huy slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son van huy slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.