Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
vanh dai » van dai, vanh tai, lanh dao
thu sach » thuat sach, thuoc sach, thu hoach
hanh dai » hanh tai, hanh dao, thanh dat
luc van » luoc van, luu van, duc van
tu sach » su sach, te sach, tu cach
cac luc » cau luc, coc luc, cac nuoc
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
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: ((tu sach) or (thu sach)) y nang xa hoi. hieu viec cac luc van ((hanh dai) OR (vanh dai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y nang xa hoi. hieu viec cac luc van ((hanh dai) OR (vanh dai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) y nang xa hoi. hieu viec cac luc van ((hanh dai) OR (vanh dai)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) y nang xa hoi. hieu viec cac luc van ((hanh dai) OR (vanh dai)) cua te*.