Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac cao danh slippers" » "tac cao dang slippers", "tac cao anh slippers", "tac cau danh slippers", "tao cao danh slippers", "tay cao danh slippers", "tac bao danh slippers", "tac cao danh slippery", "tac cao 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: (((("tac cao 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: (((("tac cao danh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac cao danh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac cao danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.