Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cac khoi » cac thoi, cac khoan, cach thoi
tang lap » sang lap, tan lap, tang ap
thanh vi » hanh vi, thanh va, thanh ve
sac kho » suc khoe, dac khoa, cac khoa
hieu su » hieu sau, tieu su, hieu so
su chao » su cao, sau chan
xu ban » xuc ban, tu ban, vu ban
vi cua » vai cua, di cua
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 ((sac kho) OR (cac khoi)) tang lap doi. hieu su chao xu ban thanh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac kho) OR (cac khoi)) tang lap doi. hieu su chao xu ban thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sac kho) OR (cac khoi)) tang lap doi. hieu su chao xu ban thanh vi cua te*.