Perhaps you should try some spelling variations:
nang cac » nang cao, bang cac, hang cac
cac khoi » cac thoi, cac khoan, cach thoi
hieu van » hieu va, thien van, lieu va
van pham » san pham, van phan, van phat
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
duc ban » duc tan, duc van, dua ban
hanh de » hanh kem
hanh ve » hanh vi, hanh va, hanh kem

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ly nang cac khoi. hieu van pham duc ban ((hanh de) OR (hanh ve)) cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang cac khoi. hieu van pham duc ban ((hanh de) OR (hanh ve)) cau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang cac khoi. hieu van pham duc ban ((hanh de) OR (hanh ve)) cau tren*.