Perhaps you should try some spelling variations:
"van hoan trinh snippets" » "van khoan trich snippets", "van hoang thinh snippets", "van hanh trinh snippets", "van hoang trinh snippets", "van hoa trinh snippets", "van toan trinh snippets", "van hoan trinh slippers"
"using java java snippets" » "using data java snippets", "using java 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: (((("van hoan trinh snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hoan trinh snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hoan trinh snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hoan trinh snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.