Perhaps you should try some spelling variations:
"va trinh quan snippets" » "va tinh quang snippets", "va trinh luat snippets", "va trinh han snippets", "van trinh quan snippets", "va tinh quan snippets", "lap trinh quan snippets", "va trinh quan slippers"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets", "using raw java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

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