Perhaps you should try some spelling variations:
xang tao » sang tao, nang tao, vang tao
thuc van » thuc vat, thuc dan, thuc va
truc van » truc va, truc ban, truc dan
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
tao hoi » tao khoi, tao boi, tay hoi
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
vi hoa » voi hoa, vi hoc, va hoa

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 ty xang tao hoi. hieu ((ve cam) or (va cam)) ((thuc van) or (truc van)) hanh vi hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty xang tao hoi. hieu ((ve cam) OR (va cam)) ((thuc van) OR (truc van)) hanh vi hoa viet.
• Adding a wildcard symbol may retrieve word variants: su sach ty xang tao hoi. hieu ((ve cam) or (va cam)) ((thuc van) or (truc van)) hanh vi hoa viet*.