Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cay xanh » cao anh, day manh, gay anh
cay lanh » cay lam, cay dan
cao lan » cao van, cao dang, cao tang
su sach » so sach, vu sach
va nham » va cham, va tham, va nha
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
di cua » dai cua, doi cua, de cua
cua su » qua su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach v nang ma hoi. lieu va nham thuc ((cay xanh) or (((cay lanh) OR (cao lan)))) di cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang ma hoi. lieu va nham thuc ((cay xanh) OR (((cay lanh) OR (cao lan)))) di cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach v nang ma hoi. lieu va nham thuc ((cay xanh) or (((cay lanh) OR (cao lan)))) di cua su".
• Adding a wildcard symbol may retrieve word variants: su sach v nang ma hoi. lieu va nham thuc ((cay xanh) or (((cay lanh) OR (cao lan)))) di cua su*.