Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc thuc cau snippets" » "hoc thuc cau snippets", "do thuc cau snippets", "hoc thuoc cau snippets", "doc truc cau snippets", "doc thuc can snippets", "doc thuc cao 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: (((("doc thuc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc thuc cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc thuc cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc thuc cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.