Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
thanh di » thanh de, thanh do, thanh dinh
nam thuc » nam thuoc, am thuc, nam thu
thuc van » thuc vat, thuc dan, thuc va
vu sach » vu bach, su sach, vu khach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
vu sac » vu san, va sac, vu cac
ve nam » he nam, va nam, le nam
ma hoi » mai hoi, xa hoi, ma hoa
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) OR (vu sach)) ky nang ma hoi. hieu ve nam thuc van ((thanh di) or (thanh doi)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sac) OR (vu sach)) ky nang ma hoi. hieu ve nam thuc van ((thanh di) OR (thanh doi)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sac) OR (vu sach)) ky nang ma hoi. hieu ve nam thuc van ((thanh di) or (thanh doi)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((vu sac) OR (vu sach)) ky nang ma hoi. hieu ve nam thuc van ((thanh di) or (thanh doi)) cua te*.