Perhaps you should try some spelling variations:
"duong ra code snippets" » "duong va code snippets", "duong ma code snippets", "duong ha code snippets", "duong rate code snippets", "duong ra code slippers"
"hang va java snippets" » "hang java java snippets", "hang va java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("duong ra code snippets") or ("hang va java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong ra code snippets") OR ("hang va java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong ra code snippets ) or ( hang va java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong ra code snippets") or ("hang va java snippets"))) or ("locating bug code snippets"))*.