Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"xa dong chan snippets" » "xa dong code snippets", "xa dong chuan snippets", "xa jong chan snippets", "xa dong chen snippets", "ha dong chan snippets", "van dong chan snippets", "lao dong chan 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: (((("xa dong chan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xa dong chan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( xa dong chan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xa dong chan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.