Perhaps you should try some spelling variations:
sinh hoat » sinh hoc, sinh vat
cua viet » ca viet, hoa viet, cua vat
minh hoa » minh hoang, trinh hoa, sinh hoc
sach ty » sach y, sach tu, sach thu
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
xang xa » mang xa, ang xa, dang xay
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao

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 xa) OR (lang xa)) hoi. hieu va cam xuc va ((minh hoa) or (sinh hoat)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((xang xa) OR (lang xa)) hoi. hieu va cam xuc va ((minh hoa) OR (sinh hoat)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((xang xa) OR (lang xa)) hoi. hieu va cam xuc va ((minh hoa) or (sinh hoat)) cua viet".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((xang xa) OR (lang xa)) hoi. hieu va cam xuc va ((minh hoa) or (sinh hoat)) cua viet*.