Perhaps you should try some spelling variations:
"hoi lan tranh slippers" » "hoi lanh tranh slippers", "hoi luan tranh slippers", "hoi can tranh slippers", "hoi lang tranh slippers", "hoi dan tranh slippers", "hoi lan tranh slippery", "hoi lan tranh grippers"
"dung java java snippets" » "dung va java snippets"
"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: (((("hoi lan tranh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi lan tranh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi lan tranh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi lan tranh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.