Perhaps you should try some spelling variations:
trien cua » truyen cua, trien nha, tri cua
vien cua » viec cua, dien cua, tien cua
thu xac » thau xay
va nhan » van nhan, ca nhan, va phan
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
xac ky » cac ky, sac ky, bac ky
co suc » cao suc, co su, cong suc
suc va » duc va, tuc va, luc va
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu xac ky ((nang xa) OR (nang ma)) hoi. hieu va co suc va nhan ((vien cua) or (trien cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu xac ky ((nang xa) OR (nang ma)) hoi. hieu va co suc va nhan ((vien cua) OR (trien cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu xac ky ((nang xa) OR (nang ma)) hoi. hieu va co suc va nhan ((vien cua) or (trien cua)) te".
• Adding a wildcard symbol may retrieve word variants: thu xac ky ((nang xa) OR (nang ma)) hoi. hieu va co suc va nhan ((vien cua) or (trien cua)) te*.