Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap thi so snippets" » "gian thai so snippets", "giang thi so snippets", "tiep thi so snippets", "giap thi sao snippets", "giap thi son snippets", "giap thi mo 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 so 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 so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap thi so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap thi so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.