Perhaps you should try some spelling variations:
thuc ban » thuoc ban, thuc dan, thu ban
ban hanh » ban hang
hanh hai » thanh hai, nhanh hai, hang hai
nang xa » nang x, lang xa, nang ma
hai cua » thai cua, dai cua, hoi cua
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
he nam » ha nam, nghe nam
le nam » ly nam, le na, te nam
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: vu sac ky nang xa hoi. hieu ((he nam) or (le nam)) thuc ban hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang xa hoi. hieu ((he nam) OR (le nam)) thuc ban hanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang xa hoi. hieu ((he nam) or (le nam)) thuc ban hanh hai cua te*.