Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"goi cham cuu snippets" » "hoi cham cuu snippets", "nguoi cham cuu snippets", "gioi chau cuu snippets", "goi cap cuu snippets", "goi chat 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 cuu 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 cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( goi cham cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("goi cham cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.