Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua vinh cuu snippets" » "qua kinh cuu snippets", "qua ninh cuu snippets", "quang vinh cuu snippets", "qua dinh cuu snippets", "qua sinh cua snippets", "qua dinh cu 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: (((("qua vinh cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua vinh cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua vinh cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua vinh cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.