Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
nang mai » nang ma, nang tai, lang mai
cham cuc » cham cuu, pham cuc, pham chuc
hanh dai » hanh dao, vanh dai, thanh dat
hanh tai » thanh tai, hang tai, han tai
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cuc ban » cua ban, cac ban, cuu ban
sac ky » cac ky, sai ky
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: thuoc sac ky nang mai hoi. hieu ve cham cuc ban ((hanh dai) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sac ky nang mai hoi. hieu ve cham cuc ban ((hanh dai) OR (hanh tai)) cua te.
• Adding a wildcard symbol may retrieve word variants: thuoc sac ky nang mai hoi. hieu ve cham cuc ban ((hanh dai) or (hanh tai)) cua te*.