Perhaps you should try some spelling variations:
"hoang son java snippets" » "hoang van java snippets", "lang son java snippets", "giang son java snippets", "hoang son va snippets", "hoang son java slippers"
"dung rung code snippets" » "dung trung code snippets", "duong rung code snippets", "dung ung code snippets", "dung rung code 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: (((("hoang son java snippets") or ("dung rung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang son java snippets") OR ("dung rung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang son java snippets ) or ( dung rung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang son java snippets") or ("dung rung code snippets"))) or ("locating bug code snippets"))*.