Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
hanh lai » hanh lam, hanh tai, thanh lap
qua cham » qua hai, qua cac, va cham
lai cua » dai cua, hai cua, lai chau
tuc dan » thuc dan, thuc day, tung dan
ky sang » ky nang, ky dang, ky tang
lai hoa » dai hoa, loai hoc
va hanh » van hanh, va thanh, va danh
tu dan » tu ban, cu dan, tu can
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu dan) OR (tuc dan)) ky sang ((lai hoa) or (dai hoc)). hieu qua cham tuc va hanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu dan) OR (tuc dan)) ky sang ((lai hoa) OR (dai hoc)). hieu qua cham tuc va hanh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu dan) OR (tuc dan)) ky sang ((lai hoa) or (dai hoc)). hieu qua cham tuc va hanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu dan) OR (tuc dan)) ky sang ((lai hoa) or (dai hoc)). hieu qua cham tuc va hanh lai cua te*.