Perhaps you should try some spelling variations:
"trong duoc hanh snippets" » "trong cuoc hanh snippets", "trong nuoc hanh snippets", "trong doi hanh snippets", "trong duoc thanh snippets", "trong duc hanh snippets", "trong doc hanh snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"
"locating bug code snippets" » "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: (((("trong duoc hanh snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trong duoc hanh snippets") OR ("dung java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong duoc hanh snippets ) or ( dung java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong duoc hanh snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))*.