Perhaps you should try some spelling variations:
huong hoi » huong doi, duong hoi, huong hoa
thuc dan » thuc hanh, hoc dan, thuc vat
hieu va » lieu va, hieu qua
hoi cua » hoi chuc
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa
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 x ho. hieu va cam ((tuc va) or (thuc dan)) huong hoi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang x ho. hieu va cam ((tuc va) OR (thuc dan)) huong hoi cua te.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang x ho. hieu va cam ((tuc va) or (thuc dan)) huong hoi cua te*.