Perhaps you should try some spelling variations:
cham luc » cham soc, nhan luc, cham cuu
van hanh » van thanh, ban hanh, van anh
cau tren » cu tren, dau tren, ca tren
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » va thanh, va danh, ban hanh
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
ma hoi » mai hoi, xa hoi, ma hoa
ly cau » ly ca, le cau, ly cac

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 v nang ma hoi. hieu ve cham luc ((va hanh) or (van hanh)) ly cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v nang ma hoi. hieu ve cham luc ((va hanh) OR (van hanh)) ly cau tren.
• Adding a wildcard symbol may retrieve word variants: te sach v nang ma hoi. hieu ve cham luc ((va hanh) or (van hanh)) ly cau tren*.