Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh choi tu slippers" » "danh cho tu slippers", "danh chi tu slippers", "doanh chuoi tu slippers", "danh hoi tu slippers", "danh chon tu slippers", "danh choi tu slippery", "danh choi tu 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: (((("danh choi tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh choi tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh choi tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh choi tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.