Perhaps you should try some spelling variations:
cham xuc » cam xuc, chat xuc, cham soc
lang van » dang van, tang van, hoang van
van hanh » van thanh, ban hanh, van anh
cuu tre » cua tre, cau tren, cau treo
dai cuu » dai cua, dai huu
va hanh » va thanh, va danh, ban hanh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
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 van) or (lang ha)) hoi. hieu va cham xuc ((va hanh) OR (van hanh)) dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((lang van) OR (lang ha)) hoi. hieu va cham xuc ((va hanh) OR (van hanh)) dai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((lang van) or (lang ha)) hoi. hieu va cham xuc ((va hanh) OR (van hanh)) dai cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((lang van) or (lang ha)) hoi. hieu va cham xuc ((va hanh) OR (van hanh)) dai cuu tre*.