Perhaps you should try some spelling variations:
"hoc luan thom snippets" » "hoc lan thom snippets", "hoc xuan thom snippets", "hoc luan khoa snippets", "hoc quan thom snippets", "nuoc luan thom snippets", "hoc luong thom snippets", "hoc luan thom 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: (((("hoc luan thom snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc luan thom snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc luan thom snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc luan thom snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.