Perhaps you should try some spelling variations:
thuat hanh » thuat thanh, thuat lanh, thuat hinh
hanh kho » hanh khu, hang khoa, hanh theo
kho mang » kho tang, cho mang, pho mang
hanh dai » hanh tai, hanh dao, thanh dat
vanh dai » van dai, vanh tai, lanh dao
may hoi » may thoi, tay hoi, mai hoi
hieu va » lieu va, hieu qua
so viet » hoc viet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat hanh kho mang may hoi. hieu va cam xuc va ((hanh dai) or (vanh dai)) so viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat hanh kho mang may hoi. hieu va cam xuc va ((hanh dai) OR (vanh dai)) so viet.
• Adding a wildcard symbol may retrieve word variants: thuat hanh kho mang may hoi. hieu va cam xuc va ((hanh dai) or (vanh dai)) so viet*.