Perhaps you should try some spelling variations:
dinh dat » dinh ket, dinh van, dinh lam
cac dinh » xac dinh, cac tinh, cac hinh
so sang » so sanh, so dang, so lang
dat cua » dai cua, day cua, mat cua
xuc cac » xuc tac, tuc cac, xuc cam
cac xuc » cam xuc, cac nuoc, chat xuc
hieu va » lieu va, hieu qua
sang ky » sang kyo, dang ky, tang ky
sang ma » nang ma, sang tao, sang tai
tang ma » tang van
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sang ky ((tang ma) or (((sang ma) OR (mang may)))) hoi. hieu va cac xuc cac dinh dat cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sang ky ((tang ma) OR (((sang ma) OR (mang may)))) hoi. hieu va cac xuc cac dinh dat cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sang ky ((tang ma) or (((sang ma) OR (mang may)))) hoi. hieu va cac xuc cac dinh dat cua tu*".