Perhaps you should try some spelling variations:
"nhung tri hanh snippets" » "nhung bai hanh snippets", "nhung bi hanh snippets", "nhung gi hanh snippets", "nhung troi hanh snippets", "nhung thi hanh snippets", "nhung tri hang snippets", "nhung tri hanh 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 tri hanh 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 tri hanh snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung tri hanh snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung tri hanh snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.