Perhaps you should try some spelling variations:
trinh do » trinh ky
va trinh » van trinh, va tinh, lap trinh
luat tuc » luat thue
so sach » so sanh, bo sach, co sach
lam tuc » lam thuoc, lam truoc, nam thuc
ly nang » ky nang, ly hang, ly vang
ho hai » hoc hai, pho hai, cho hai
y nang » ky nang, v nang, may nang
do cua » doi cua, co cua, de cua
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: so sach ((y nang) OR (ly nang)) ho hai. lieu va ((lam tuc) or (luat tuc)) va trinh do cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((y nang) OR (ly nang)) ho hai. lieu va ((lam tuc) OR (luat tuc)) va trinh do cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((y nang) OR (ly nang)) ho hai. lieu va ((lam tuc) or (luat tuc)) va trinh do cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ((y nang) OR (ly nang)) ho hai. lieu va ((lam tuc) or (luat tuc)) va trinh do cua te*.