Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
hieu van » hieu va, thien van, lieu va
van pham » san pham, van phan, van phat
thuc gia » thuc giai, thue gia, thuc dia
te sach » toc sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang ma » tang ma, sang ma, nang cao
nan cua » nhan cua, ban cua, nam cua
dan cua » dan ca, ban cua, dai cua
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: te sach ly nang ma hoi. hieu van pham thuc gia thanh ((nan cua) or (dan cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang ma hoi. hieu van pham thuc gia thanh ((nan cua) OR (dan cua)) triet.
• Adding a wildcard symbol may retrieve word variants: te sach ly nang ma hoi. hieu van pham thuc gia thanh ((nan cua) or (dan cua)) triet*.