Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi hieu cho snippets" » "thi hieu code snippets", "thi chieu cho snippets", "thi hien cho snippets", "thi dieu cho snippets", "thi hiem cho snippets", "thi hieu chi snippets", "thi chieu cao 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 hieu 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 hieu cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi hieu cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hieu cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.