Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tong dan cua snippets" » "tuong dan cua snippets", "thong dan cua snippets", "trong dan cua snippets", "tong dan ca snippets", "tong ban cua snippets", "tong dai cua 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: (((("tong dan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tong dan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tong dan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tong dan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.