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