Perhaps you should try some spelling variations:
"hoang hai code snippets" » "hang hai code snippets", "hoang nham code snippets", "hoang thi code snippets", "hoang hai con snippets"
"dong cac code slippers" » "duong cac code slippers", "dong bac code slippers", "dung cac code slippers", "dong cac cong slippers", "dong cac co slippers", "dong cac che slippers"
"locating bug code snippets" » "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: (((("dong cac code slippers") or ("hoang hai code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cac code slippers") OR ("hoang hai code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cac code slippers ) or ( hoang hai code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cac code slippers") or ("hoang hai code snippets"))) or ("locating bug code snippets"))*.