Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu hoc cong snippets" » "chu hoc co snippets", "chu cac cong snippets", "chu hoc dung snippets", "cho hoc cong snippets", "cuu hoc cong snippets", "cau hoc 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: (((("chu hoc 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: (((("chu hoc cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu hoc cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu hoc cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.