Perhaps you should try some spelling variations:
luat tuc » luat thue
va trinh » van trinh, va tinh, lap trinh
so sanh » do sanh
tang ho » tang cho, tung ho, tang ha
lam tuc » lam thuoc, lam truoc, nam thuc
de cua » le cua, te cua, dieu cua
do cua » doi cua, co cua, dong cua
sanh y » sinh y, anh y, hanh y
ho hai » hoc hai, pho hai, cho hai
y tang » ky tang, 6 tang, 7 tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh y tang ho hai. lieu va ((lam tuc) or (luat tuc)) va trinh ((do cua) or (de cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh y tang ho hai. lieu va ((lam tuc) OR (luat tuc)) va trinh ((do cua) OR (de cua)) te.
• Adding a wildcard symbol may retrieve word variants: so sanh y tang ho hai. lieu va ((lam tuc) or (luat tuc)) va trinh ((do cua) or (de cua)) te*.