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