Perhaps you should try some spelling variations:
thien van » thi van
ban hanh » ban hang
hanh lai » hanh lam, hanh tai, thanh lap
sang ky » sang kyo, dang ky, tang ky
cau luc » cau truc, cau phuc
lai cho » lai chau, bai choi, lai cuoc
cho tre » cho thue, khoe tre
san ky » van ky, dan ky, ban ky

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((san ky) or (sang ky)) nang x ho. thien van ((cau luc) or (cam xuc)) ban hanh lai cho tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((san ky) OR (sang ky)) nang x ho. thien van ((cau luc) OR (cam xuc)) ban hanh lai cho tre.
• Adding a wildcard symbol may retrieve word variants: thu ((san ky) or (sang ky)) nang x ho. thien van ((cau luc) or (cam xuc)) ban hanh lai cho tre*.