Perhaps you should try some spelling variations:
"che quan tinh snippets" » "che quan binh snippets", "che quang ninh snippets", "che quang binh snippets", "he quan tinh snippets", "chuc quan tinh snippets", "co quan tinh snippets", "che quan tinh 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: (((("che quan tinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che quan tinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che quan tinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che quan tinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.