Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thu san » thuy san, thu ban, phu san
va hanh » van hanh, va danh, ban hanh
ky sang » ky dang, ky tang, duy sang
vai cua » dai cua, hai cua, lai cua
lai roi » lai hoi, loi roi
hieu su » hieu sau, tieu su, hieu so
su cam » su nam, su cao, su can
cua tu » cua tuc, cua su, cua cu

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 sang) or (ky nang)) lai roi. hieu su cam xuc ((va hanh) OR (va thanh)) vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu san ((ky sang) OR (ky nang)) lai roi. hieu su cam xuc ((va hanh) OR (va thanh)) vai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu san ((ky sang) or (ky nang)) lai roi. hieu su cam xuc ((va hanh) OR (va thanh)) vai cua tu".
• Adding a wildcard symbol may retrieve word variants: thu san ((ky sang) or (ky nang)) lai roi. hieu su cam xuc ((va hanh) OR (va thanh)) vai cua tu*.