Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hanh tai, anh thai
hinh thai » sinh thai, tinh thai, dinh thi
kho tang » cao tang
hieu van » thien van, lieu va, hieu ve
cua tre » cua te, cuu tre, cua triet
duc van » duc va, duc tan, duc manh
cam duc » cam xuc, cao duc, pham duc
sac kho » suc khoe, cac khoi, dac khoa
hieu va » lieu va, hieu qua
tang xa » trang xa, tang ma, lang xa
su sac » su sach, su cac, su xac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac kho tang xa hoi. ((hieu va) or (hieu van)) cam duc van ((hanh thai) or (hinh thai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac kho tang xa hoi. ((hieu va) OR (hieu van)) cam duc van ((hanh thai) OR (hinh thai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac kho tang xa hoi. ((hieu va) or (hieu van)) cam duc van ((hanh thai) or (hinh thai)) cua tre*.