Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap thi cho snippets" » "gian thai cho snippets", "giang thi cho snippets", "tiep thi cho snippets", "giap thi choi snippets", "giap thi tho snippets", "giap thi thao 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: (((("giap thi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giap thi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap thi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap thi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.