Perhaps you should try some spelling variations:
"doi chieu day snippets" » "doc hieu day snippets", "doi chi day snippets", "ho chieu day snippets", "doi chien dau snippets", "doi chieu cao snippets", "doi hieu dac snippets", "doi chieu day 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: (((("doi chieu day snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi chieu day snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi chieu day snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi chieu day snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.