Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
cham xuc » cam xuc, chat xuc, pham duc
cuu tre » cua tre, cau tren, cau treo
dai cuu » dai cua, dai huu
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
lang xa » dang xay, lang van
lang ha » long ha
sac ky » cac ky, sai ky
tu sac » tu sach, tu cac, tu san

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 ky ((lang xa) or (lang ha)) hoi. hieu va ((cham xuc) OR (cham soc)) va hanh dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((lang xa) OR (lang ha)) hoi. hieu va ((cham xuc) OR (cham soc)) va hanh dai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((lang xa) or (lang ha)) hoi. hieu va ((cham xuc) OR (cham soc)) va hanh dai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((lang xa) or (lang ha)) hoi. hieu va ((cham xuc) OR (cham soc)) va hanh dai cuu tre*.