Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vao duoc dat slippers" » "tao duoc dat slippers", "vat duoc dat slippers", "va duoc dat slippers", "vao duoc bat slippers", "vao duoc dai slippers", "vao duoc dan slippers", "vao duoc dat slippery", "vao duoc dat 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: (((("vao duoc dat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vao duoc dat slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vao duoc dat slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vao duoc dat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.