Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh lai » hanh lam, hanh tai, thanh lap
thuc va » thuc vat, thuc dan, thuc day
tu sach » thu sach, su sach, te sach
tang ma » mang may, tang van
y tang » ky tang, 6 tang, 7 tang
ve cam » ve cham, va cam, ve cai
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y tang ma hoi. hieu ((ve cam) or (ve cac)) ((xuc va) or (thuc va)) hanh lai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y tang ma hoi. hieu ((ve cam) OR (ve cac)) ((xuc va) OR (thuc va)) hanh lai su triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y tang ma hoi. hieu ((ve cam) or (ve cac)) ((xuc va) or (thuc va)) hanh lai su triet*.