Perhaps you should try some spelling variations:
"duong sinh data snippets" » "duong minh data snippets", "duong manh data snippets", "trong sinh data snippets", "duong using data snippets", "duong sinh vat snippets", "duong dinh dat snippets", "duong sinh data slippers"
"ngu java java snippets" » "ngu va java snippets", "ngu 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: (((("ngu java java snippets") or ("duong sinh data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngu java java snippets") OR ("duong sinh data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngu java java snippets ) or ( duong sinh data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngu java java snippets") or ("duong sinh data snippets"))) or ("locating bug code snippets"))*.