Perhaps you should try some spelling variations:
thuat sach » thuat san
thuat lanh » thuat lap, thuat san
hanh dai » hanh tai, hanh dao, vanh dai
cham xuc » cam xuc, chat xuc, cham soc
dai cuu » dai cua, dai huu
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
cuu tre » cua tre, cau tren, cau treo
lang ha » long ha
lang xa » dang xay, lang van
xuc va » duc va, tuc va, luc va

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

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