Perhaps you should try some spelling variations:
dat duoc » dat nuoc, da duoc, luat duoc
hieu va » lieu va, hieu qua
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
duoc va » nuoc va, duc va, duoc ma
di cua » dai cua, doi cua, de cua
vu ban » va ban
va dat » va dao, va dau, va dap
ma hoi » mai hoi, xa hoi, ma hoa
tu ban » thu ban, te ban
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: ((vu ban) OR (tu ban)) ky tang ma hoi. hieu va dat duoc va hanh di cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu ban) OR (tu ban)) ky tang ma hoi. hieu va dat duoc va hanh di cua tu*".