Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho tinh doi snippets" » "cho sinh doi snippets", "cho minh doi snippets", "tho tinh doi snippets", "cho trinh doc snippets", "cho trinh do snippets", "cho tinh hoc 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 tinh doi 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 tinh doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho tinh doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho tinh doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.