Perhaps you should try some spelling variations:
thiet khang » thieu khang
hanh thiet » thanh thieu, hanh theo
khang ma » khan ma, khang a, khong ma
van kham » van tham, va kham, van khao
van khai » van hai, van khi, dan khai
chuan ha » chuan he, quan ha, chuan bi
hanh vai » hanh vi, hanh va, hanh tai
so hanh » so sanh, so danh, co hanh
ha hanh » ha thanh, nha hanh, ha anh
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa
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: so hanh thiet khang ma hoi. hieu ((van kham) or (van khai)) chuan ha hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so hanh thiet khang ma hoi. hieu ((van kham) OR (van khai)) chuan ha hanh vai cua tu.
• Adding a wildcard symbol may retrieve word variants: so hanh thiet khang ma hoi. hieu ((van kham) or (van khai)) chuan ha hanh vai cua tu*.