Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
van dang » van dong, van dung, van nang
nang ma » tang ma, sang ma, nang cao
va dang » va nang, va lang, da dang
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
cua te » cua tu

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 ma hoi. lieu va cac nuoc ((va dang) or (van dang)) hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang ma hoi. lieu va cac nuoc ((va dang) OR (van dang)) hai cua te.
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang ma hoi. lieu va cac nuoc ((va dang) or (van dang)) hai cua te*.