Perhaps you should try some spelling variations:
tang lai » trang lai, tang tai, tang loi
hieu vu » hieu va, hieu ve, hieu su
va hanh » van hanh, va thanh, va danh
lai hoi » dai hoi, lai hoa, lai roi
vu chao » vu cao, vu cham, vu chat
sac ky » cac ky
cua tu » cua tuc, cua su, cua cu
xu va » xu van, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sac ky) or (sai ky)) tang lai hoi. hieu vu chao xu va hanh vi ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (sai ky)) tang lai hoi. hieu vu chao xu va hanh vi ((cua te) OR (cua tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (sai ky)) tang lai hoi. hieu vu chao xu va hanh vi ((cua te) OR (cua tu))*".