Perhaps you should try some spelling variations:
dai hoi » dai hoc, dai hai, dai moi
lai roi » lai hoi, loi roi
tieu su » thieu so
su phap » su pham, su phat, cu phap
phap xu » phap tu, phap thu, phap ngu
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
di cua » dai cua, doi cua, de cua
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 cac ky nang ((dai hoi) or (lai roi)). tieu su phap xu va danh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((dai hoi) OR (lai roi)). tieu su phap xu va danh di cua tu.
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((dai hoi) or (lai roi)). tieu su phap xu va danh di cua tu*.