Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets", "using data java slippers"
"van duong thu snippets" » "van dong thu snippets", "van dung thu snippets", "van phong thu snippets", "van duong thuy snippets", "van duong thi snippets", "van luong thuc snippets", "van duong thu 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 data java snippets") or ("van duong thu snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data java snippets") OR ("van duong thu snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using data java snippets ) or ( van duong thu snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") or ("van duong thu snippets"))) or ("locating bugs code snippets"))*.