Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cham vao cho snippets" » "cham vao code snippets", "cham va cho snippets", "pham van cho snippets", "chat va cho snippets", "cham cao cho snippets", "cham van cho snippets", "cham dao cho 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: (((("cham vao 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: (((("cham vao cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cham vao cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham vao cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.