Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"goi cham cua snippets" » "hoi cham cua snippets", "nguoi cham cua snippets", "gioi chau cua snippets", "goi chat cua snippets", "goi cham cuu snippets", "goi ham cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("goi cham cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("goi cham cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( goi cham cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("goi cham cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.