Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc hai cham snippets" » "hoc hai code snippets", "hoc hai pham snippets", "hoc hoi cham snippets", "hoc hai chau snippets", "hoc dai cham snippets", "hoc bai cham snippets", "hoc tai cham 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: (((("hoc hai cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc hai cham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc hai cham snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc hai cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.