Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using java a snippets" » "using data a snippets", "using java _ snippets", "using java can snippets", "using java a slippers"
"hai duong code snippets" » "hai duong co snippets", "hai duong cong snippets", "hai duong che snippets", "dai cuong code snippets", "hai phong code snippets", "hai duong code slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java a snippets") or ("hai duong code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java a snippets") OR ("hai duong code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using java a snippets ) or ( hai duong code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java a snippets") or ("hai duong code snippets"))) or ("locating bugs code snippets"))*.