Perhaps you should try some spelling variations:
thanh kem » hanh kem, thanh ke, thanh ket
cau triet » cau trieu, su triet, cua triet
dua tren » dung tren
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
luc van » luoc van, luu van, luc va
duc van » duc va, duc tan, duc manh
ve cam » ve cham, ve cac, va cam

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 ky nang x ho. hieu ve cam ((luc van) or (duc van)) thanh kem ((dua tren) or (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x ho. hieu ve cam ((luc van) OR (duc van)) thanh kem ((dua tren) OR (cau triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x ho. hieu ve cam ((luc van) or (duc van)) thanh kem ((dua tren) or (cau triet))*.