Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van tuan » van quan, van ban, anh tuan
va chat » van chat, va phat, cao chat
tuan va » toan va, luan va, quan va
ly nang » ky nang, ly hang, ly vang
duc van » duc va, duc tan, duc manh
va cua » va chua, via cua, ca cua
cua te » cua tu
y nang » ky nang, v nang, may nang
va cam » va cham, va cac, va cao
ma hoi » mai hoi, xa hoi, ma hoa

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 ((y nang) OR (ly nang)) ma hoi. lieu ((va cam) or (va chat)) duc van tuan va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((y nang) OR (ly nang)) ma hoi. lieu ((va cam) OR (va chat)) duc van tuan va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((y nang) OR (ly nang)) ma hoi. lieu ((va cam) or (va chat)) duc van tuan va cua te".
• Adding a wildcard symbol may retrieve word variants: thuat sach ((y nang) OR (ly nang)) ma hoi. lieu ((va cam) or (va chat)) duc van tuan va cua te*.