Perhaps you should try some spelling variations:
cam thue » cam thu, nam thue, cam thiet
lam thue » nam thue, luat thue, lam thuoc
tang tai » hang tai, dung tai, sang tao
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va tang » va trang, van tang, ha tang
tai cua » thai cua, tai cuc, tri cua
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 y nang xa hoi. hieu va ((cam thue) OR (lam thue)) va tang tai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu va ((cam thue) OR (lam thue)) va tang tai cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu va ((cam thue) OR (lam thue)) va tang tai cua te*.