Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chat tuc » chat xuc, luat tuc, chat huu
cau treo » cau theo, cau tren, cau triet
nang ma » tang ma, sang ma, nang cao
va chat » van chat, va phat, cao chat
va hanh » van hanh, va thanh, va danh
cu tren » tu tren, dua tren
tuc va » thuc va, truc va, tuc xa

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 x) or (nang ma)) hoi. lieu va chat tuc va hanh vi ((cau treo) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y ((nang x) OR (nang ma)) hoi. lieu va chat tuc va hanh vi ((cau treo) OR (cu tren)).
• Adding a wildcard symbol may retrieve word variants: thuat sach y ((nang x) or (nang ma)) hoi. lieu va chat tuc va hanh vi ((cau treo) or (cu tren))*.