Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"het van ngoc snippets" » "het tran ngoc snippets", "het van hoc snippets", "het van nghe snippets", "he van ngoc snippets", "hat van ngoc snippets", "ket van ngoc snippets", "het van ngoc slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("het van ngoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("het van ngoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( het van ngoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("het van ngoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.