Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
truc ban » thuc ban, truc dan, truc van
thuc van » thuc vat, thuc va, thuc hanh
su sach » so sach, vu sach
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va dau » va dao
di cua » dai cua, doi cua, de cua

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 nang xa hoi. lieu va dau ((((thuc van) OR (thuc dan))) or (truc ban)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. lieu va dau ((((thuc van) OR (thuc dan))) OR (truc ban)) hanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. lieu va dau ((((thuc van) OR (thuc dan))) or (truc ban)) hanh di cua tre*".