Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
van hanh » van thanh, ban hanh, van anh
cham luc » cham soc, nhan luc, cham cuu
va cham » va chat, va tham
doi cua » dai cua, hoi cua
nang xa » nang x, lang xa, mang xa
luc van » luoc van, luu van, duc van
nang ma » tang ma, sang ma, nang cao
sach ty » sach tu, sach thu, xach tay
hieu va » lieu va, hieu qua
cua te » cua tu

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 ty) OR (sach y)) ((nang xa) or (nang ma)) hoi. hieu va cham luc van hanh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach y)) ((nang xa) OR (nang ma)) hoi. hieu va cham luc van hanh doi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach y)) ((nang xa) or (nang ma)) hoi. hieu va cham luc van hanh doi cua te*".