Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son hat cua snippets" » "son hai cua snippets", "son ha cua snippets", "song chat cua snippets", "son nhat cua snippets", "son chat cua snippets", "son phat cua 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: (((("son hat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son hat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son hat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son hat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.