Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi dan cach snippets" » "thi dan code snippets", "thi dan cac snippets", "thi dan canh snippets", "thi nhan cach snippets", "thi doan cach snippets", "thi lan cach snippets", "thi dai cach 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 dan cach 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 dan cach snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi dan cach snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi dan cach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.