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 lan snippets" » "van dong lan snippets", "van dung lan snippets", "van phong lan snippets", "van duong van snippets", "van duong lam snippets", "van duong san snippets", "van duong lan slippers"

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

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