Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho bo cong snippets" » "cho so cong snippets", "cho cao cong snippets", "cho hoc cong snippets", "cho bao cong snippets", "cho ba cong snippets", "cho ro cong 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: (((("cho bo cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho bo cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho bo cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho bo cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.