Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi luan cho snippets" » "thi luan code snippets", "thi lan cho snippets", "thi xuan cho snippets", "thi loan cho snippets", "thi luan chi snippets", "thi luan che snippets", "thi luan pho 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: (((("thi luan cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi luan cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi luan cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi luan cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.