Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tuan doi cua snippets" » "tuan doi code snippets", "truan doi cua snippets", "quan doi cua snippets", "luan doi cua snippets", "tuan hoi cua snippets", "tuan dai cua snippets", "tuan dong cua snippets"
"python using java snippets" » "python using data 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: (((("tuan doi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuan doi cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tuan doi cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuan doi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.