Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van cong low snippets" » "van cong code snippets", "van dong low snippets", "van phong low snippets", "phan cong low snippets", "van cong lon snippets", "van cong hoa snippets", "van cong so snippets"
"using java java snippets" » "using data java snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van cong low snippets") or ("using java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van cong low snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( van cong low snippets ) or ( using java java snippets ))) or ( locating bug core snippets ))*.