Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tan duoc do snippets" » "tan duoc code snippets", "tao duoc do snippets", "tran duc do snippets", "da duoc do snippets", "tan duoc dao snippets", "tan duoc co snippets", "tan duoc vo snippets"
"python using java snippets" » "python using data 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: (((("tan duoc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan duoc do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tan duoc do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan duoc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.