Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim huong so snippets" » "kim dung so snippets", "kim nhung so snippets", "kim seong so snippets", "kim tuong so snippets", "kim muong so snippets", "kim huong co 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: (((("kim huong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kim huong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim huong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim huong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.