Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hao li doi snippets" » "hao li code snippets", "hao lei doi snippets", "hao le doi snippets", "dao li doi snippets", "hao li dai snippets", "hao ly doi snippets", "hao lieu doi 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: (((("hao li doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao li doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hao li doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao li doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.