Perhaps you should try some spelling variations:
kho tang » cao tang
hieu van » hieu va, thien van, lieu va
duc manh » suc manh, duc anh, duc minh
sac kho » suc khoe, cac khoi, dac khoa
tang xa » trang xa, tang ma, lang xa
hieu ve » hieu va
duc van » duc va, duc tan, duc phan
cuu tre » cua tre, cau tren, cau treo
tu sac » tu sach, tu cac, tu san
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac kho tang xa hoi. ((hieu ve) or (hieu van)) cam ((duc van) OR (duc manh)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac kho tang xa hoi. ((hieu ve) OR (hieu van)) cam ((duc van) OR (duc manh)) hanh vi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac kho tang xa hoi. ((hieu ve) or (hieu van)) cam ((duc van) OR (duc manh)) hanh vi cuu tre*".