Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho van loc snippets" » "chao van loc snippets", "chon van loc snippets", "cho vay loc snippets", "cho van hoc snippets", "cho van loi snippets", "cho van ngoc 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 van loc 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 van loc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho van loc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho van loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.