Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan thi cua snippets" » "dan thi code snippets", "dang thi cua snippets", "tran thi cua snippets", "dinh thi cua snippets", "dan thai cua snippets", "dan thi cuc snippets", "dan tri 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: (((("dan thi 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: (((("dan thi cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan thi cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan thi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.