Perhaps you should try some spelling variations:
dang thanh » dong thanh, dang hanh, hoang thanh
thanh tai » thanh hai, thanh toan, doanh tai
suc dang » su dang, nuoc dang, suc manh
hieu ve » hieu va, hieu van
tai cuu » tai cuc, tai buu, tai cua
cam suc » cam xuc, cao suc, cham soc
cuu tre » cua tre, cau tren, cau treo
nang xa » lang xa, nang ma, mang xa
ve cam » ve cham, ve cac, va cam
su dai » sau dai, si dai, su tai
su sai » su tai, su hai, su mai

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) OR (su dai)) ky ((nang xa) or (nang x)) hoi. hieu ve cam suc dang thanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sai) OR (su dai)) ky ((nang xa) OR (nang x)) hoi. hieu ve cam suc dang thanh tai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sai) OR (su dai)) ky ((nang xa) or (nang x)) hoi. hieu ve cam suc dang thanh tai cuu tre*".