Perhaps you should try some spelling variations:
"anh thuat trinh snippets" » "anh thuat tinh snippets", "anh thuyet trinh snippets", "anh thuat trong snippets", "anh tuan trinh snippets", "anh thuc trinh snippets", "anh chuan trinh snippets", "anh thuat trinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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