Perhaps you should try some spelling variations:
"nhung phu trinh snippets" » "nhung pham trinh snippets", "nhung phat trinh snippets", "nhung khuc trinh snippets", "nhung phu tinh snippets", "nhung phuc thinh snippets", "nhung phu ninh snippets", "nhung phu 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: (((("nhung phu 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: (((("nhung phu trinh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung phu trinh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung phu trinh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.