Perhaps you should try some spelling variations:
hinh thai » sinh thai, tinh thai, dinh thi
thai cua » than cua, tai cuc, tri cua
van hinh » van chinh, van thinh, van minh
dang xay » dang van, van xay
cua tre » cua te, cuu tre, cua triet
duc van » duc va, duc tan, duc manh
cam duc » cam xuc, cao duc, pham duc
hieu ve » hieu va, hieu van
lang xa » lang ha, lang van
dang xa » dang ha, dang va, mang xa
sai ky » sac ky
ve cam » ve cham, ve cac, va cam
su sai » su tai, su hai, su dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky ((((dang xa) OR (dang xay))) or (lang xa)) hoi. hieu ve cam duc van hinh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky ((((dang xa) OR (dang xay))) OR (lang xa)) hoi. hieu ve cam duc van hinh thai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky ((((dang xa) OR (dang xay))) or (lang xa)) hoi. hieu ve cam duc van hinh thai cua tre*".