Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tac danh slippers" » "van sach danh slippers", "van cac doanh slippers", "van cac dan slippers", "van thac danh slippers", "van tai danh slippers", "van tan danh slippers", "van tac danh slippery", "van tac danh 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: (((("van tac danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van tac danh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tac danh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tac danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.